If she kept hitting me, yeah, I would fight back, but one punch, I would just say "What the fuck is wrong with you?" or something along those lines. But I wouldn't just clock her if she punched me, then walked away.
Edit: Same thing for a man. I don't get into fights, but I'm not afraid of them.
Edit: Same thing for a man. I don't get into fights, but I'm not afraid of them.