[s3e21] Ex-husbands — And Wives

: As the truth comes to light, Jenny tips off William that the group is on to him. William manages to flee New York just as the police close in, but not before telling Serena he truly loves her and Lily. Romantic Arcs and Ultimatums

: In the aftermath of her father's departure, Serena finds comfort in Dan, leading to a moment of closeness between the two exes. Jenny Humphrey’s Descent [S3E21] Ex-Husbands and Wives

"Gossip Girl" Ex-Husbands and Wives (TV Episode 2010) - IMDb : As the truth comes to light, Jenny

The episode focuses on the group's efforts to expose William van der Woodsen's true motives. While Serena remains fiercely loyal to her father, Rufus feels increasingly alienated from the family. Serena finds comfort in Dan