[s1e13] The Thin Line Between Chuck And Nate Page

Nate physically attacks Chuck on the street after learning about the betrayal.

Jenny Humphrey, seeking to dethrone Blair, overhears the truth about Blair and Chuck. She is the one who confirms the affair to Nate. [S1E13] The Thin Line Between Chuck and Nate

After Blair rejects Chuck and his "games," Chuck retaliates by leaking to Gossip Girl that Blair slept with two different guys in one week. Nate physically attacks Chuck on the street after