Dan lost his virginity to Serena and Blair finally dumped Nate.That was one bad night for Nate.His dad hits him and gets sent off to jail,Blair dumps him and wait until next week when he finds out she slept with Chuck which from the beginning of the episode I realized that was gonna happen.I gues it's an eye for an eye since Nate slept with Serena who is Blair's best friend,she sleeps with Chuck who is Nate's best friend.Ironic huh?