What is that one tree hill episode??!!?!?

Hey please help me, i need to know what this episode is called, its the one were brroke is talking to peyton she says this isn highschool anymore, were supposed to grow out of the " you stole my boyfried skank!" an more into "im over it" please help me i need it bcz im doing that scene for theater cl and my partner picked it and i never seen it. PLEASE HELP!!