It's hard to decide what to do. I don't really know him all that well so I don't know what he does to people who piss him off. If I go to the police for anything he might get mad and do something else really crappy. A restraining order isn't going to keep him away unless he wants to stay away. I'm in a bad position right now because I hate having to be mean to anyone, even his kind. Ignoring the phone calls isn't working. I've been doing it for over a week.
Thanks for everyone's advice so far. (Especially for those of you who don't think it makes me an idiot for being scared)