As we know by now, Sheldon and Amy began their experiment in living together at Penny’s place last week.
After Amy suggests that they share the same toothbrush holder, Sheldon announces that he wants to see other people.
Anyone who’s watched more than a couple of Big Bang episodes knows that living with Sheldon has many challenges where his, often odd, behavior is concerned, and, this week, Amy was having trouble getting him to compromise on some of the rules he has on co-habitating.
Penny them takes him out of the apartment so that he and Amy can both calm down, and this is when Sheldon makes a startling confession to her.