Should I go after this girl that did something REALLY bad?

Okay, in homeroom we had to pick heroes, and the girl I like is in mine. She said lets do someone from the Red Sox, I obviously said "How about the bruins" and she said "uh no" and that totally pissed me off, and I guess she isn't a bruins fan. Should I go after her? Btw, I'm a die hard bruins fan.