I've just stood up in front of everyone that matters in New York...
Blair: I've just stood up in front of everyone that matters in New York society and said I was dating Dan Humphrey. I committed social suicide for you.
Louis: Serena told me you've been having an affair with him.
Blair: She misunderstood. We've been friends. That's all. You have to believe me, you're the only man in my life now. The only man I want there anyway.
Louis: I believe you.