Would you make your son break up with his girlfriend

My son is 15 almost 16 and started dating this girl back in October. I didn't really like the idea of him dating her because she has a bad reputation. Always getting into fights at school. Very disrespectful to teachers and other authorities. Not someone I wanted him dating but he told me she's really nice when you get to know her.

They had an argument because my son didn't answer her text because he was gaming with friends so she broke his phone. It happened at school so I received a phone call from the school about it. And her mom is assuming they won't have to replace the phone just because they're dating. Too many red flags for me and I don't see this relationship getting any better.. I think it's best to end it