2x13
Blair: But I am me. And you are you. We’re Chuck and Blair. Blair and Chuck. The worst thing you’ve ever done—the darkest thought you’ve ever had—I will stand by you through anything.
Chuck: And why would you do that?
Blair: Because I love you.

5x10
Chuck: Are you sure you wanna do this? I mean, a prince, a fairy tale wedding.This is all you ever wanted.
Blair: No. You’re all I ever wanted. I love you. I love every part of you.