2.25 "The Goodbye Gossip Girl" (Season Finale)

Gossip Girl decides to liven things up at the Constance Billard and St. Jude's graduation by sending out a shocking and damaging email blast in the midst of the commencement ceremony, stirring Serena to come up with a plan of attack. The Mean Girls; Nelly, Isabel, Penelope, etc, challenge Jenny to throw her hat in the ring to succeed Blair as Queen Bee next year. Meanwhile, Lily and Rufus finally makes amends meet and get engaged and move in together. With Blair's blessing, Jenny becomes the new queen. Chuck finally admits his love to Blair and the two reconcile. As the summer draws near, Nate decides to go on the backpacking trip with Vanessa. Georgina returns to town having recovered/re-stole all of Dan's money, and she also requests Blair for a roommate at NYU. Carter Baizen also shows up and reveals to Serena where her biological father is. In the end, Serena is going to Brown, Blair, Dan, Vanessa, and Georgina are going to NYU, and Nate is going uptown to Columbia, and Lily and Rufus' illegitimate son, Scott, inconspicuously arrives in town for college and to shadow Dan.