Juliet Doesn't Live Here Anymore is the 8th episode of the fourth season and 73rd overall.
Serena continues to resist temptation with her professor Colin, while Blair tries to resist temptation with Chuck. Vanessa joins Juliet's scheme to try to bring down Serena when damaging information about Serena falls into her lap. Nate discovers Juliet's real secret and Dan realizes that he still has feelings for Serena.
Blair: This has got to end.
Chuck: I thought it just did
Blair: Step any closer and I'll scream
Chuck: You better believe you will.
Chuck: I hope you did your yoga. This could go on a while.
Chuck: I, for one can fully corroborate Miss. Waldorf's story. She was indeed having an affair with Professor Forrester. I know this because I keep tabs on everyone Blair sees and talks to due to my insatiable jealousy. Though she did state something to the effect that he didn't quite satisfy her like I used to.
Blair: It's true.
Blair: What do you think our count is?
Chuck: For us, a million. The world, zero.