Originally Posted by
atdawn 
And he knows where you mother lives I assume. And you already know he has the nerves to treat you badly in front of her. Can you go to a place he does not know about, somewhere he cannot get to you?
This is my concern too, him showing up at the mother's house.
There is no shame in seeking help from the same place you volunteered at. They care and are a good resource for just this type of situation.