Statistically, an enormous percentage of physical abuse is done by women against men - and they get away with it precisely because there is no legal way to deal with it. Women can be verbally, emotionally and physically abusive, and then instantly claim victim status and win without ANY evidence, and they know it.
I say this guy showed a lot of courage. He didn't punch the crap out of her, and he faced up against the humiliation she was counting on him being afraid of, and called the cops and got her sorry excuse arrested.
And he did it when he was no doubt totally enraged. THAT's being a man.
Cmon, it says she threw snack cakes at him. That is hardly abuse. In fact, it sounds like a joke. Let’s just call the police every time there is a food fight at a school cafeteria or popcorn that is thrown from the back of a movie theater. Gimme a break. If she actually physically harmed him, then I would not have a problem with what he did.