Not sure what to do about new relationship

So, in mid- February I met this really sweet, nice guy and we started dating, but moved really fast. Everything seemed to be going fine up until last Wednesday 3/17. We went out for a nice St. Paddy’s day and ended up drinking way too much. He drank so much that he shoved me. The rest of the night was so horrible. But the next day we talked about it, and worked things out. However, at the same time on 3/17, a major family crisis hit his family and he hasn’t been the same since. We broke up a couple of times, but worked things out. But he has been so extremely upset over this family crisis. He has asked me to be patient with him and I have been. I have also told him I will continue to be patient. But for how long is that appropriate? I know he really does care a lot for me. I suddenly had to move across town unexpectedly, and he came to help me move. I had to end up taking a place in a not so good section of town. He’s now worried about me. He later sent me a message earlier this evening apologizing that he’s been sad and thanking me for being patient. I responded with understanding what’s going on with him and that he doesn’t have to apologize for his feelings. I am not really sure at all what to do. I feel a lot of anxiety over this entire thing and there are a lot of reasons for that. Part of me wonders if this incident that happened with us is what’s really bothering him and the family crisis is an easy way for him to tell me that that really affected him. But part of me is anxious and worried that I’ll never see or hear from him again, and that I’ll fade out of his life. I hope none of that is true. But I am trying to understand what he’s going through with the family thing and wondering how I can help. I really don’t know what to do.