The End of the Affair?
Blair's flashbacks reveal the fallout of her and Chuck's car accident, which Nate realizes may have been caused by foul play. Meanwhile, Lily gets a private eye to locate Charlie; and Vera Wang makes an appearance at Blair's bridal-dress fitting.

Cast
Blake LivelySerena van der Woodsen
Leighton MeesterBlair Waldorf
Penn BadgleyDan Humphrey
Chace CrawfordNate Archibald
Ed WestwickChuck Bass
Kaylee DeFerIvy Dickens
Matthew SettleRufus Humphrey
Kelly RutherfordLily van der WoodsenGossip Girl on tvt

