Last season on the “Big Bang Theory”, we left off with Penny and Leonard running off to get married and Amy telling Sheldon he needs time to think about their relationship. Little did Amy know, Sheldon was preparing to propose.

Tonight’s premiere starts with Leonard and Amy in Vegas getting ready to wed. That is when Sheldon calls Leonard, urging him not to get married because women are horrible. He is clearly upset that Amy ended things. He asks Leonard to never let him date again.

Sheldon shows up at Amy’s apartment, feeling like he has given her enough time. Amy says she isn’t ready to talk about things. She is heading to Howard and Bernadette’s to watch Leonard and Penny’s wedding as they are streaming it online. Sheldon wants to tag along, but Amy thinks it will be awkward and uncomfortable, but he follows her there anyway.
The wedding begins and Leonard recites vows he prepared. Penny on the other hand recites lyrics from “You Got a Friend in Me” from “Toy Story.”

During the ceremony Sheldon bothers Amy, asking for her to make her decision. He then insults her by pointing out that her eggs aren’t going to last forever. This causes Amy to get mad and officially end things. Through all the ruckus, the group misses seeing Penny and Leonard say “I do.”

After the ceremony, Leonard carries Penny over the threshold to their room. Despite some struggle, he is able to make it to the bed. They start to kiss, but then Penny stops things. She tells Leonard that she can’t help but think about him kissing another girl when he was away. This was revealed to Penny in the last season finale on the drive to Vegas. The two start fighting when Penny finds out that the girl he kissed is someone he works with. When they return home, they go to their separate apartments.

Sheldon goes over to Penny’s to comfort her. He tries to make her feel better by telling her that she doesn’t have to worry since the girl Leonard kissed is smart and attractive so she would never go for Leonard. This of course doesn’t help. It then comes out that Penny knew that Amy was going to break up with Sheldon and she didn’t try to stop it. This makes him upset, so he leaves.

Sheldon tells Leonard that men are better than women because he wouldn’t kiss him, make him fall in love and then break up with him. Leonard agreed that this isn’t something he would do. He does admit that he was wrong and it is his fault that he is spending his wedding night with Sheldon and not his wife.