Apartment-mate trapped in an abusive relationship, Help!?

You may not be able to help your friend the cycle of abuse is hard to break, her family history, drugs may be involved, maybe the best thing you can do is have her to seek counseling services and get the help she needs. You are even putting yourself in danger for even helping her because she probably goes and tell him what you have said to her. She never will tell the police he is abusive, some do not even see it as abuse they may see it as love. Find resources and give them to her.