She also reconnects with her mother, Lily van der Woodsen, and her recovering brother Eric van der Woodsen, who is in rehab after attempting suicide.
Angry, Georgina befriends Dan using an alias as a girl named Sarah (Desperately Seeking Serena).
Scared of what will happen next, Serena goes to Blair and tells her the major secret Georgina has on her: that she killed someone.
She is best friends with Blair Waldorf and also has a close friendship with Nate Archibald and Chuck Bass.
She, Dan and Blair are the only characters that appear in every episode of the TV series.
Things take a turn for the worse when Serena's old frenemy, Georgina Sparks, comes back to town.
They begin to hang out again but Serena asks her to stay away when she misses the SATs after a night out with her.
Dan and Serena finally get married in the series finale.
Serena is regarded as the "it girl" of the Upper East Side.
Through the books, she realize that she truly loves Nate, but he is still Blair's boyfriend.
In the thirteenth novel, she decides to stay in New York to be with Nate, but at the end, he leaves to not get in between her and Blair.
After her revelation, she leaves and Blair eventually finds her, drunk and messed up.