Chuck: You really love him, don't you?
Blair: Yes. But not like I love you. Louis and I, it's different. It's lighter, more simple. He makes me happy.
Chuck: And I don't?
Blair: What we have is a great love. It's complicated. Intense. All-consuming. No matter what we do and how much we fight, it'll always pull us in. What's mere happiness in the face of all that, right?Chuck: There's a difference between a great love and the right love. I left the Empire State Building last year after two minutes when you didn't show. Louis waited all night. This is your chance at happiness. You think you shouldn't want it 'cause you've never had it and it scares you. But you deserve your fairytale.
Blair: We make our own fairy tales.
Chuck: Only when we have to.
-Gossip Girl Season 4 Episode 22 The Wrong Goodbye