Most Helpful Girl
You can't do anything else apart from being close to her.0THIS IS NOT RELEVANT ANYMORE
Most Helpful Guy
you can't fix people, and certainly not her family... Just give her a place she can come to escape it all. With her home life like that, she will likely just want a break from it all. Don't bring it up either, if she brings it up and is looking to vent, fine, be there for her, but don't intentionally bring that drama into the separate space you are creating.
I dated a girl with a very messed up family and had to do something similar... eventually though, these kinds of relationships just can't work, especially if your home life is stable, but that doesn't mean you can't be a supportive boyfriend for now.3THIS IS NOT RELEVANT ANYMORE