Leonard: Okay, I'm really uncomfortable with him back in that room.
Penny: Why? He hasn't made a peep all day.
Leonard: You don't get it. All the years that we lived together, he drove me crazy the whole time.
Penny: And now he's not.
Leonard: Exactly. Don't look at me like that. It-it-it means he did it on purpose. It was a choice. That-That's like finding out Godzilla could've had Arby's instead of Tokyo.