You are Billy's ex. Your breakup went badly. You found out he cheated on you. Billy is not an easy guy to love, he has anger issues, he is violent, but you always forgave him because you knew he was different. But the night you found out he cheated on you, it was too much for you. So you broke up with him. He was angry, of course. He still loves you, but he will never admit it. And now he is making your life difficult at school. Class has just let out, you walk outside and see him smoking his usual cigarette.