Hello, this behavior obviously belongs to school bullying. This is an infringement. The best way is to deal with this problem through legal means.

Of course, I know you won't use legal means alone. You must protect your rights and interests with the help of your parents.

You can go to Baidu. School bullying is illegal. For college students, everyone is an adult and has full capacity for civil conduct. As long as the evidence is conclusive, a lawsuit is allowed.

So, first of all, you need to collect evidence, such as audio and video, and find witnesses. After collecting the evidence, you can take it away, let your parents call the police and let the police handle it. You can negotiate with other parents and tell your child that if you continue to violate the law and discipline and bear all the legal consequences, you can handle the problem through her parents. I think her parents will realize her interest. If they can't continue to solve it, they will directly hand it over to the law. It's hard to say whether she can graduate from this university. The consequences are quite serious.

In the following days, you may have to bear a period of humiliation, that is to say, during this time, collect evidence and master enough evidence so that she can't bully you any more.