1.16 "All About My Brother"

Georgina tells Serena that she can reveal a deep dark secret from Serena's past, but no one is prepared for what Georgina does next. Meanwhile, Blair and Jenny's power struggle continues when each of them start spreading false and scandalous rumors about each other on Gossip Girl's blog. Dan sees Jenny's new beau Asher cheating on her and tells her, but Jenny refuses to believe Dan. Rufus goes to Lily for advice on how to handle Jenny's new rebellious behavior. Serena tries to confront Georgina, but she skips town before Serena has a chance. After this, Serena tells Lily and everyone she and Georgina are not friends after discovering that Georgina has been lying to everyone, claiming that she and Serena are still friends.