Most Helpful Girl
That's toxic behavior honestly, and it's not easy for a person to get rid of a mindset like that. From my experience, change has to come from within themselves. There's literally nothing you can do about it. You could cut ties with every guy you every talked to or made eye contact with, and he'd still be suspicious of your behavior. What he needs to do is realize that he can't control you, and that he just has to trust you. Otherwise your relationship won't work. Trust is essential in a relationship, and without it, it's doomed to fail. You should probably try to talk to him about it and ask him why he's so suspicious, and if you really have given him a reason to act as if you're a cheater/potential cheater. He needs to realize that if he keeps behaving like that, you will most likely grow tired of it and leave him. His worst nightmare at the moment is probably you cheating on him and leaving him. How ironic wouldn't it be if he ended up driving you away himself? So you really need to talk to him about it.
Also, just as a heads up. A lot of the time when someone accuses their partner for cheating (even though the partner is 100% innocent), it's because they themselves are cheating. They know what signs to look for and they become paranoid that their partner might be doing the same thing they're doing. Just for food for thought.
But definitely talk to him. Make him realize that what he's doing is wrong, and that he can't keep accusing you like this.