You always had beef with one of the popular girls at school.

She was always laughing at you, stealing things from you, pulling your hair, among other things.

She was dating Chris, an attractive guy she flexed around the other girls like he was a rare gem.

You have seen him checking you out several times, even though he was dating that annoying girl. You always thought about stealing him from her, but that would be too low.

But she provoked you, like she was asking for it, so you did it.