Departure (2019)

S4E16 While You Weren't Sleeping

No Upper East Side bash is complete without a hefty dose of Gossip Girl intrigue, and Eric's 18th birthday is no exception. Blair makes the bold move to fast-track her ambitions of becoming a formidable woman, but she soon finds herself overwhelmed. Meanwhile, Serena grapples with a tough decision between her family and her relationship with Ben. The tension between Chuck and Lily continues to simmer following Lily's shocking betrayal, leaving their bond strained and cold.