Lily: You don't know the whole story. Ted and Karen were off and on all through college, and it always went the same way. They'd be having fun, douching it up, and then one day...
[flashback to Ted arriving back at his college dorm to find Karen in bed with another guy:]
Ted: I know you think pepperoni is fascist and you're totally right, so I can... Oh, my God! Karen!
Man: [sniffs] Sorry, bro.
Karen: Before you say anything, I think that you should read Baudelaire's, "Les Fleurs Du Mal".
Ted: Okay.