Am I wrong about meeting with my ex tonight?

My ex girlfriend and I broke up about a year and a half ago after dating for four years. We were really good friends before dating, and today, we still keep in contact. I admit that I miss her a lot. I tend to compare women I meet to her, and none of them quite match up. We ended on good terms, it was a complicated break up. I never wanted to break up with her, but we both decided to try and move on. For the past six months, she has been seeing this guy that is physically and verbally abusive towards her. They fight and bicker in public, and get into explosive fights in private. About while ago, I got a call from her saying that she was leaving town to get away from her boyfriend, because they got in a huge fight, and she was afraid he might seriously hurt her, worse than he has before. At this point, we live three hours apart driving. I told her to come over my way, and said I would meet her at this place that we used to go to, but now I am sort of starting to regret it, and I don't know what to do. I should be meeting her in about an hour, and I don't know what to do or say. I want to help her, but I also don't want to put myself in danger. As far as I know, her boyfriend could be following her. If I still have feelings for her should I bring her to my house to stay for tonight so she doesn't need to stay in some motel by herself? We started talking again right before she started dating this new guy, but since she moved so far away, I have only seen her about twice in the past year. I can't stand her up, but I am afraid of what I am getting myself into. Am I doing the right thing as a friend?