Gossip Girl (2007)

S1E13 The Thin Line Between Chuck and Nate

Gossip Girl reveals that Serena van der Woodsen has been spotted purchasing pregnancy tests. Naturally, in the Upper East Side, the reality tends to be more shocking than the rumors. Nate discovers the secret romance between Blair and Chuck, and when the truth comes to light, Blair's world begins to unravel. Meanwhile, Dan grapples with the challenge of expressing his feelings to Serena and sharing those three important words.