[s1e13] The Thin Line Between Chuck And Nate -

This episode marks the transition of Chuck and Nate's friendship from best friends to bitter rivals and Jenny's official entry into the "popular" group.

Serena is spotted at a drugstore buying a pregnancy test, which immediately becomes a Gossip Girl blast. [S1E13] The Thin Line Between Chuck and Nate

Look out for the classic UES school uniforms and Eleanor Waldorf's concern over Blair's behavior, which hints at her past struggles with bulimia. Notable Soundtrack: This episode marks the transition of Chuck and

Nate breaks up with Blair, telling her he wants nothing to do with her. Blair is effectively "dethroned" as Queen Bee at school. Episode Highlights Notable Soundtrack: Nate breaks up with Blair, telling

In (Season 1, Episode 13), the Upper East Side is rocked by a pregnancy scandal that quickly shifts from Serena to Blair, leading to the ultimate collapse of Blair’s social standing and the end of her relationship with Nate. The Scandal: The Pregnancy Scare

Serena was actually buying the test for Blair, whose period is late. While the test ultimately comes back negative, the fallout is permanent.