These two were a long time coming.

They started their relationship off going from neighbors to friends to lovers and back again.

These two have been through a lot but their love for one another outweighed all the negatives and naysayers.

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However, was their relationship all sarcastic giggles and rainbows?

It appears our favorite couple had some toxicity in their relationship among all the good things they shared.

Let’s take a look five times they were perfect and five times they were anything but.

Big Bang Theory - Penny and Leonard talking in bed after getting married

And whileThe Big Bang Theorydoes an amazing job at making this topic hilarious, it’s actually quite sad.

These two never seem to be on the same page.

Raj is not wrong.

Leonard in a black shirt staring at Penny who’s standing next to him in a pink sweater in The Big Bang Theory

Penny always dated men who were gorgeous on the outside but lacked intelligence.

He is worthy and valued in all aspects not just in the scientific world.

Penny is a farm-raised girl who longed of becoming a star and loves football and beer.

Leonard proposes to Penny on The Big Bang Theory

As friends, these two uplifted each other.

But as a couple, their differences made both of them insecure in themselves and in their relationship.

Both of their insecurities in this relationship are enough to become toxic in their own minds.

penny and leonard watch football together on tbbt

Being friends for years made them more comfortable with each other.

They’ve been through so much as friends, what could possibly go wrong as partners?

Even after Leonard and Penny got married, their relationship was the giant elephant in the room.

The Big Bang Theory - bad decisions

There are times when Leonard brags about it but there also times where he’s deeply offended by it.

Remember when Leonard dated Priya?

Thankfully, Sheldon trusts Penny and considers her a friend.

Zack at dinner with Penny and Leonard on TBBT

For Leonard, having his girlfriend also be friends with his roommate makes everyone’s lives easier.

TOXIC: LEONARD WAS UNFAITHFUL

Fans were split when they found out Leonard cheated on Penny.

Was his admission out of honesty and respect or was he sabotaging the relationship?

Sheldon joined Penny and Leonard’s date on TBBT

They truly defied all the odds.

The stereotype had been broken.

TOXIC: DID THEY SETTLE FOR EACH OTHER OUT OF COMFORTABILITY?

Leonard eating lunch with Mandy at Caltech on TBBT

What if they really did settle?

Perhaps they were simply comfortable in each other’s presence and that was enough.

The fact that Beverly liked Penny at all was a godsend.

Penny and Leonard Hofstadter at the alter on TBBT

And on the other hand, Penny’s dad was thrilled that Penny was dating someone with a brain.

leonard and penny chocolate

Penny and Leonard talking to Beverly at home on TBBT

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