Serena: I'm really trying to make an effort here. I thought everything was good between us.
Blair: It was. Before I found out you had sex with my boyfriend.
There was little doubt we were in for a crazy episode after this exchange took place early in "The Wild Brunch."
You can check out more Gossip Girl quotes from the hour now.
Meanwhile, we also have a detailed recap of the show, along with pictures and music from the episode. It was a good one on all fronts, that's for sure.
Remember to come back every day for the latest news and gossip from the world of Serena, Blair and company.
Until next next time, XOXO, Gossip Girl Insider.