Well, if you did anything else, he might get aggressive anyway,
so you may as well have the cops behind you. Just keep it discreet
- if too many people know about it, the loss of face may set him
off.
When is your boyfriend coming back? Do you have anyone else to
provide cover for you until then? Maybe, as ditzy said, get your
father to answer the call the next time he rings, and have your dad
tell him to go away.