Barney: Nora, how you been?
Nora: Fine.
Barney: Look, I don't know why you would possibly say yes to this, but, would you want to grab a cup of coffee with me sometime? 20 minutes. I was such a jerk to you. You can spend the entire time calling me every dirty name in the book.
Nora: I speak four languages. I'm gonna need more than 20 minutes.
Barney: I'll call you. You look beautiful, by the way. And here I thought it was too late for sundresses.
Nora: It's never too late, Barney.
Barney: Challenge accepted.