abusive relationship.

I live 1,000 miles away from my family. I have a 20 year old sister who is as hard headed as anyone can be. Last year our dad committed suicide and our mom doesn't want anything to do with us. She's had a really hard time dealing with everything so I've cut her some slack in a lot of ways. However, she's dating a guy who's beating her and treating her like crap. It started a few weeks ago when he splashed toilet water on her face and slapped her. Last night she sent a text to our older sister saying the two of them were in a fist fight. Please, ladies I'm looking for advice on how to help her from so far away. Remember, like I said she's very hardheaded and stuck in her ways. I just want to get her the help she needs.