In this new sneak preview from next week's Gossip Girl, "Goodbye, Columbia," Serena tells Blair about Gossip Girl's savage treatment of her. But B's mind is wholly elsewhere.

As we discussed when we posted the initial Gossip Girl promos for the episode, Chuck has in fact enrolled at Columbia, and Blair is determined not to let that bring her down.

Her strategy? Becoming the understudy to Martha Chamberlain, an influential business prof. Serena's inspired by her BFF, too, but will their both of their plans go awry?

[video url="http://www.tvfanatic.com/videos/goodbye-columbia-sneak-preview/" title="Goodbye, Columbia Sneak Preview"] [/video]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.