While looking for Steven so she can sort things out, Serena runs into Blair. Surprisingly, the two make amends and Blair reassures Serena that Steven still plans to propose to her. But in a familiar twist, Sage once again turns on everyone with a plan of her own ... this time stealing Georgina's phone and broadcasting the Serena/Dan sex tape for everyone at the ball to see. Steven is (finally) furious at Serena and Nate (finally) realizes how childish Sage is, resulting in the quickest succession of break-ups that cotillion has ever seen. Blair also sees the video and realizes that Dan cheated on her, resulting in an awkward confrontation that ends with her telling Dan that this time, they are really never ever getting back together.
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