Must be read to understand any other story or one-shot.Rajesh Koothrappali, after breaking up with his girlfriend, Emily, invites Stuart Bloom, a long time friend, to live with him after Stuart was kicked out of the Wolowitzes' house.

Penny grills him on why he chose this moment to tell her, and assumes it's because he wants to sabotage their Vegas wedding, but Leonard assures her that he's totally committed to the idea, and they agree to go through with it.

They drive on, looking really unsure of their plans and their future together.

Raj works as an astrophysicist in the Physics Department at Caltech.

He had selective mutism, which did not allow him to talk to women outside of his family unless he was under the influence of alcohol (or medication), until the season 6 finale.

However their trip quickly gets awkward when Leonard, who is clearly having second thoughts, confesses to Penny that, years ago, he got drunk and kissed another woman.

It was before they were engaged but while they were still dating.

Raj has decided to break up with Emily because she's simply too weird for him.

So when she takes him to make out in a graveyard (like a weirdo) Raj tries to pull the trigger and break things off.

One day, the gang see/find the ring and question Sheldon about it.

Sheldon tells them he is married and the don't believe him until they meet his husband." // Main Story in the LM Universe.

Sheldon's (Jim Parsons) relationship with Amy (Mayim Bialick) has been a challenging one.