MONDAY, MAY 10

"GOSSIP GIRL" - (9:00-10:00 p.m. ET)

"Ex-Husbands and Wives" (TV-14) (HDTV)

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. Penn Badgley and Chace Crawford also star. Norman Buckley directed the episode written by Sara Goodman (#321).