Nathan: What’s wrong?
Haley: I had a little disagreement with Lucas.
Nathan: About me?
Haley: No, um, just the way he’s been acting, he’s really disappointing me.(Nathan laughs) What?
Nathan: Nothing, it’s just kind of ironic.
Haley: What’s ironic?
Nathan: Lucas, being a jerk.
Haley: How is that…how is that ironic?
Nathan: Well cause that used to be my role, right? I mean this whole thing started cause I was just trying to mess with Lucas. It’s just kind of weird, that’s all. 
(Haley looks shocked at what he says but he doesn’t notice) 
One Tree Hill - Hanging by a Moment (1x13)