Earlier we posted the spoilerific promotional photos for the 21st episode, "Ex-Husbands and Wives." Well now we've got spoilers in the form of an official synopsis. Check it out for spoilers on this episode set to air on May 10!
TEAM RUFUS VS. TEAM WILL (GUEST STAR BILLY BALDWIN, "DIRTY SEXY MONEY") - When things get tense between Rufus (Matthew Settle) and Will (Baldwin), Serena (Blake Lively) chooses to stand behind her father, while at the Rufus is made to feel like an outsider in his own family. Meanwhile, Jenny (Taylor Momsen) deliberately shares information with Will that may ultimately destroy Lily (Kelly Rutherford) and Rufus' marriage. After many failed attempts, Chuck (Ed Westwick) makes one last grand gesture to reconcile with Blair (Leighton Meester), hoping she will finally accept the fact that they are destined to be together.
Source: The CW