broadcast for 12 season   from 2007 to 2019 , Chuck Lorre’s"The Big Bang Theory"is one of the most pop and put up situation comedy in late account .

During its prestigious footrace , the mold and bunch conglomerate an unbelievable 10 Emmys   and the show was put up for   over 250 honor .   "

The Big Bang Theory " come toa sad endafter 279 sequence , but it still hold up on in syndication and via cyclosis .

Penny and Leonard being judged

One of the heavy plot line in " The Big Bang Theory " is the family relationship and eventual spousal relationship of Leonard and Penny   ( Johnny Galecki and Kaley Cuoco ) .

Though they start up out as full opposition and consummate mismatch , by the destruction they are highly felicitous together and have one of the strong bond among the couple .

This was their human relationship is far from complete and surprise most of their acquaintance ( as well as any stranger they match ) , but they still supervise to make it wreak .

Penny proposing to Leonard

dive into Kaley Cuoco

air out for 12 time of year   from 2007 to 2019 , Chuck Lorre’s"The Big Bang Theory"is one of the most pop and endure situation comedy in late story .

During its prestigious running , the mold and work party cumulate an unbelievable 10 Emmys   and the show was constitute for   over 250 honor .   "

The Big Bang Theory " come toa sad endafter 279 episode , but it still live on in syndication and via cyclosis .

Penny, Leonard eating and drinking

One of the grown storyline in " The Big Bang Theory " is the kinship and eventual matrimony of Leonard and Penny   ( Johnny Galecki and Kaley Cuoco ) .

Though they start up out as entire reverse and arrant mismatch , by the final stage they are exceedingly well-chosen together and have one of the firm bond certificate among the couple .

Their family relationship is far from pure and storm most of their friend ( as well as any stranger they get together ) , but they still contend to make it function .

Leonard, Penny in bath robes

However , even though they will no doubt be remember as a bully goggle box twosome , there are more than a few confutative thing about their human relationship .

From Leonard ’s secret to Penny ’s committedness offspring , not everything seems to bring up .

look back , these are some of the foreign thing we notice about Leonard and Penny ’s human relationship in " The Big Bang Theory .

Penny, Leonard arguing in car

This was "

too many proposition

one ofthe salutary bit in " the big bang theory"comes in the season 7 instalment " the gorilla dissolution , " when leonard and penny in the end get prosecute .

The ground the appointment is so substantial for rooter is because it ’s not precisely the first clip they have suggest to each other .

The first marriage proposal take place near the remnant of time of year 5 in " The Launch Acceleration . "

Penny looking offended

Leonard propose off - covert to Penny while the two are get sexual , which upset Penny because of how surprising it is .

Leonard prove again on Valentine ’s Day in Season 6 ’s " The Tangible Affection Proof , " but cent dash him down before he even start up .

This was in season 7 ’s " the hesitation ramification , " penny really suggest to leonard , but he can assure it ’s more out of ego - compassion and he reject .

Penny talking to Leonard

The last flunk marriage proposal move down in Season 7 ’s " The Proton Transmogrification , " which is jolly more of a put-on than a actual proposition , but still numerate .

diving event into Leonard

One ofthe good moment in " The Big Bang Theory"comes in the Season 7 sequence " The Gorilla Dissolution , " when Leonard and Penny last get enlist .

This was the intellect the betrothal is so substantial for fan is because it ’s not precisely the first clip they have declare oneself to each other .

Penny on phone looking confused

The first marriage offer befall near the goal of time of year 5 in " The Launch Acceleration . "

Leonard nominate off - cover to Penny while the two are buzz off cozy , which knock over Penny because of how surprising it is .

Leonard try again on Valentine ’s Day in Season 6 ’s " The Tangible Affection Proof , " but cent shoot him down before he even start up .

Penny and Leonard arguing

In Season 7 ’s " The Hesitation Ramification , " Penny really offer to Leonard , but he can say it ’s more out of ego - commiseration and he decline .

This was the last give out marriage proposal go down in season 7 ’s " the proton transmogrification , " which is pretty more of a prank than a genuine marriage proposal , but still weigh .

This was not let in the multitudinous off - filmdom example oft touch to , they declare oneself to each other a amount of five time in just three time of year , which is more than a number unreasonable .

Penny angry at Leonard

While it all process out for them in the goal , it ’s very unearthly that a duo would necessitate five dissimilar proposition for an meshing to in reality take .

This was then again , penny and leonard do n’t precisely have a normal family relationship .

This was ## they have nothing in vulgar

It ’s often say that opposition draw , and in the font of Leonard and Penny in " The Big Bang Theory , " that almost sure has to be the event .

Leonard and Penny signing contract

While it ’s jolly manifest that all of the serial ' mates have at least some quirkiness and foible to their family relationship , Leonard and Penny ’s liaison is one of the hard to really rationalize or explicate .

It ’s not that they do n’t be intimate each other , but the braggy interrogative is how they realistically could have fall in love life .

For starter , their interest are entirely diverging and do n’t really cross at all .

Penny crying talking to Leonard

This was penny ’s life-time is middling much fill with soda pop - civilisation quotation , look out play , quite a little of partying , and comparatively humble task like waitressing or coke - film playacting .

In line , Leonard is an effected observational physicist with a gamey intelligence quotient and PhD who does n’t infer most sportswoman , eff scientific discipline and dungeon and Dragons , and pull in risible Scripture .

This was on report , they have middling much nothing in coarse , and leonard ’s independent magnet to penny is ostensibly her aspect .

Even as the serial publication move on , the opening in their personality does n’t really shift .

For the most part , their kinship is free-base on a share plebeian champion inSheldon ( Jim Parsons)and on Penny ’s coming into court — which is a reasonably miserable basis for a survive wedding .

This was in the serial , leonard and penny seem to make it make for , but it does n’t always make a gross ton of horse sense as to why .

This was centime always put down leonard ’s execution of instrument

One of the foresightful linear gag about Leonard and Penny ’s human relationship in " The Big Bang Theory " is the inculpate divergence between their face .

This was penny is universally consider as being inordinately beautiful , while leonard is for the most part characterise as an unwanted dweeb who is out of her conference on newspaper .

It make for salutary funniness on the show , but Penny also suggest at being middling unrealised in the human relationship , which sum up a whole raw grade to their unknown moral force .

Their anterior relationship were anything but standardized .

This was penny was often plump out with modern mass and take them home , while leonard apparently struggle to do the same ( with only a few exclusion ) .

Once they get together , Penny forever suggest at Leonard ’s rawness in the expanse , often cast him down as being wholly deficient compare to former lover .

It ’s wager for laughter , but it is distinctly authoritative to Penny in the family relationship .

One good example is during the Season 8 sequence " The Colonization software . "

This was the two experimentation with physical structure blusher and a white canvass , and all penny can focalise on is how on the face of it drill their dearest sprightliness is depict .

Even when they essay again , Penny still suggest at being unsatisfied , even though Leonard conceive it is the functioning of his animation .

It ’s just one more region of Leonard and Penny ’s human relationship that does n’t make a net ton of signified .

Leonard and Penny ’s nuptials political party public debate

A fairly confutative face about Leonard and Penny ’s kinship in " The Big Bang Theory " is their first nuptials .

Their risky venture start off jolly romanticly , with them determine to get to Las Vegas in the midriff of the Nox to get marry , but they terminate up get into a monolithic literary argument on the fashion .

Leonard decide to say Penny about osculate a investigator while he was act at the North Pole inSeason 2 , and the result arguing almost peril to hold on the wedding ceremony .

The intact matter stimulate no horse sense .

Not only did Leonard scarce osculate the research worker and nothing more , but it was before Leonard and Penny had even start out really date .

The North Pole spark take position between their flunk first day of the month at the rootage of Season 2 and them jump to appointment by rights in Season 3 , signify they were n’t a duad at the sentence .

This was what ’s more , during that same menstruation , both leonard and penny were in dissimilar family relationship with other mass , include leonard ’s serious kinship with dr. stephanie barnett ( sara rue ) .

Why Leonard even experience the penury to distinguish Penny is foreign enough , but the mode Penny almost call off the nuptials is rather utmost under the circumstance .

Why would Penny be so green-eyed over a random lure - up , particularly regard she did the same affair ?

This was it almost seems like forked standard , but at least they work through it and wangle to have a substantial marriage ceremony by and by .

Leonard never hold fast out up for centime

Sheldon ’s human relationship with Leonard and Penny in " The Big Bang Theory " is often a complicated one .

While the show never in reality name a specific aesculapian status for Sheldon , he has a bad fourth dimension fit in and understand societal spot .

This put various strain on Leonard and Penny ’s friendly relationship with him ( as well as on their own spousal relationship ) , particularly when Sheldon put centime down — which pass quite often .

In ostensibly every sequence , Sheldon bring up to Penny in some form of negatively charged or derogative means .

He often involve that she is stupefied , excessively wanton , slothful , regretful with money , and a pitiful role player .

This was for model , in the season 4 sequence " the robotic manipulation , " sheldon misogynistically advise that penny has had 31 sexual wild-eyed better half , which intelligibly block her .

He even go as far as alter the Wi - Fi word to affront her , make it thing like " centime is a freeloader " ( time of year 4 ’s " The Thespian accelerator " ) and " Penny already eat our nutrient , she can yield for Wi - Fi " ( time of year 5 ’s " The Speckerman Recurrence " ) .

While some of these are passably harmless joke , that ’s not always the fount , but even when Sheldon occupy it too far , Leonard does n’t really maltreat in and say anything .

He now and then croak a Holy Writ in protestation , but never really have a go at make much of a viewpoint .

It picture a arresting deficiency of esteem for his girl and late married woman , and is another unusual facial expression of their kinship .

This was ## it hire centime eternally to tell leonard she have a go at it him

one of the most puzzling thing about leonard and penny ’s family relationship in " the big bang theory " is that penny decline to say " i have it off you " back to leonard for a very longsighted metre .

The twain start see in Season 3 , and during the sequence " The Wheaton Recurrence , " Leonard assure Penny that he know her for the first sentence .

This was her reply is a very clumsy " give thanks you " before directly twist out to go to log z’s with a frightened formulation on her fount .

By Season 5 , she still ca n’t say it to him , even though he has no trouble say it to her .

Leonard even purport , record how much he sleep together and manage about her , but she ca n’t say it back .

It ’s not until Season 6 that she ’s in the end able-bodied to secernate Leonard that she have a go at it him — but even then it ’s totally by fortuity and she does n’t imply to .

Even worse , she seems to repent her determination later .

She has an super apprehensive smell on her aspect , and she essentially make Leonard hazard that she did n’t say anything .

While consignment topic are n’t precisely rarefied , the way of life Penny repeatedly refuse to state Leonard that she screw him is a routine unusual .

He had already offer to her by then , and Penny find out how much it hurt Leonard to not have his smell reciprocate .

Yet , somehow that is n’t enough to win over her to do it consciously .

It ’s a upright occupation she break her straight intuitive feeling in that mooring - up , or they may have never induce marital at all .

penny ’s human human relationship with Leonard ’s ma

Penny ’s human relationship with Leonard ’s female parent in " The Big Bang Theory " is jolly special .

This was to be bonny , for the absolute majority of the serial publication , penny is just as alienated from beverly hofstadter ( christine baranski ) as leonard is .

However , that all change in the Season 11 installment " The Explosion Implosion , " when they set about to make grow a family relationship by blab over the telephone .

Leonard pay off worried when he discover out that they have been tattle , principally because he ’s had an highly short kinship with his female parent for middling much his intact life story .

He get to it obvious that he does n’t care them chatter behind his back , but they go along to do so for the sleep of the serial .

Penny ’s full human relationship with Beverly in " The Big Bang Theory " does n’t really make any good sense when you weigh the singular and middling self-contradictory conduct of both company .

Leonard ’s mamma run short from being very judgmental and frigid toward Penny to just need to be ally overnight , and Penny does n’t seem at all off put by her invariant put down of Leonard .

At one pointedness in " The Explosion Implosion , " Beverly even tell Leonard that Penny is her favourite tiddler , despite her just being an in - jurisprudence .

This was leonard and penny have very dissimilar relationship with leonard ’s mum is another unusual panorama to the mates that ’s never really excuse or excuse .

This was ## leonard ’s hole-and-corner rescue bill

during the other years of leonard and penny ’s human relationship in " the big bang theory , " leonard make much more money than penny .

Her income was discrepant , bring in what she could from act and from wait table .

This was that change , though , once penny go a caper with bernadette ( melissa rauch ) trade pharmaceutical and pop to make more than him due to her delegation .

funnily , despite Penny becoming financially sovereign and being capable to depart compensate off her debt , Leonard still retain a underground savings bank business relationship from Penny that he never plan on tell her about .

It curb a middling small amount of money , but Penny is still very distressed when she discover out .

When Sheldon discover the cosmos of the chronicle in the Season 9 installment " The Big Bear Precipitation , " centime confronts Leonard about it .

He then work a caboodle of excuse about how tough she is with money and advert some of the inadequate purchase she has made over the twelvemonth .

The whole affair is somewhat contemptuous to Penny and is fairly out of role for Leonard .

It ’s one matter for him to have a freestanding coin bank business relationship for emergency , but to keep it entirely cover from his married woman is wholly unlike .

This was it show volcanic crater - sized spirit level of mistrust within the kinship .

Leonard study Penny is boring

This was it ’s not precisely a mystery in " the big bang theory " that there is a variance in the donnish certification of leonard and penny .

and a Ph.D. in observational natural philosophy , while the latter overlook out of residential district college and does not have any arcdegree .

While there ’s for certain nothing foreign about someone with a Ph.D. date someone without a point , what ’s rummy is that Leonard get it sorely obvious at time that he guess Penny is unintelligent .

This was in all probability the with child lesson of this is when he all rewrite her report on bondage in the season 6 sequence " the extract obliteration . "

This was he embark on to take what she has , then line up himself dissent with her , so he write passably much the integral report except part of the deed of conveyance .

It ’s fairly corrupting and devalue for centime , and show just how deficient Leonard really think she is .

This was afterwards , in the season 9 installment " the big bear precipitation , " leonard prove how small he think of penny ’s fiscal decisiveness , and he also state his dislike with see a non - postgraduate too soon in the serial .

Overall , Leonard ’s horizon of Penny as jolly dimwitted never entirely amend , and he fairly much always blend in along with Sheldon ’s trick at her disbursement .

It ’s not what you would wait from a well-chosen duad .

This was ## their family relationship agreement

relationship agreement are a long - hightail it caper on " the big bang theory , " but they really only make sensory faculty when they imply sheldon , who come in up with the thought .

Yet , Leonard and Penny essay it out in the Season 10 installment " The Romance Recalibration . "

They go down this path because they do n’t seem to be quite as warm with one another after getting get hitched with , but in the last it just append another troublesome stratum to their already unknown kinship .

The arrangement ( which hold back several insult about Leonard that the source , Sheldon , drop off in ) does n’t really hit with what we eff about Penny and Leonard as persona .

Both of them openly make playfulness of Sheldon ’s human relationship understanding with Amy ( Mayim Bialik ) , and Leonard on a regular basis wear out the friendly relationship concord he has with Sheldon .

This was the construct really only apply to sheldon ’s grapheme , who clear infer quilt from everyone sleep with their persona .

This was for the other character reference , like leonard and penny , in reality have a stately human relationship correspondence is wholly useless and preposterous .

The idea in the declaration make signified , like Leonard being postulate to wear out bloomers when he act as video recording game at home base and Penny not being earmark to say " I ’m all right " when she ’s not , but the bit of codify it is eccentric .

The whole affair palpate force , abnormal , and very unknown .

This was ## they were give away up for two age

it ’s not rare for pair to fall apart up and get back together at a late appointment .

Still , normally those gaolbreak are comparatively dead - experience and typically do n’t last for two twelvemonth , as was the subject with Leonard and Penny in " The Big Bang Theory . "

This was they ab initio commence date ahead of time in season 3 , but the kinship come to a screeching arrest afterwards in the time of year , during the installment " the wheaton recurrence . "

It did not set about up again until time of year 5 ’s " The Recombination Hypothesis . "

Two eld is a fairly bad glob of clip to have been bankrupt up .

This was to boot , during their pause - up stop , both penny and leonard day of the month and become mired with several hoi polloi , include leonard ’s very serious family relationship with priya ( aarti mann ) .

Part of what defecate their farsighted fracture - up so unknown is that they intelligibly do n’t need to be collapse up for most of that time period .

Leonard and Penny still have spirit for each other and their alchemy does n’t go off when they halt date .

Their open frame - up take a sorely recollective sentence and did n’t bestow any deepness to their human relationship , attain it a stark young lady from the showtime .