(Knocks on Sheldon's bedroom door)
Sheldon: Come in. (They enter. Amy: Very good, Leonard. I meant compared to the real-world applications of neurobiology, theoretical physics is, what's the word I'm looking for? Leonard (pretending to sneeze): 25 cats! Penny: God, he's an ass when he drinks. Scene: The apartment. Sheldon and Amy, Shamy. Sheldon: Are you suggesting I terminate my relationship with Amy? Sheldon: You didn't break up, she dumped you. With the grain.
Plan: A: their combined personalities; Q: What is the rest of the group irritated by? A: physics; Q: What subject did Sheldon and Amy argue over? A: the apartment; Q: Where does Leonard become worried when Sheldon brings 25 cats into? A: Sheldon's mother; Q: Who manipulates Sheldon into reconciling with Amy? Summary: Sheldon and Amy are very compatible with each other, but the rest of the group is irritated by their combined personalities. They are relieved when Sheldon and Amy break up after an argument over the relative significance of physics compared to neuroscience, but Leonard becomes worried when Sheldon brings 25 cats into the apartment. He calls in Sheldon's mother, who manipulates Sheldon into reconciling with Amy.