So upset

I just got assaulted. My own brother came to visit and introduce us to his girlfriend and her son. he started drinking which isnt a big deal we all usually have a couple drinks. The next thing I know he is drunk and wants to leave and starts screaming at everyone. He assaulted my spouse, his girlfriend (in front of her 2 year old), and myself. We are all women. It was so sudden. I ended up hitting him at one point. They ended up leaving. Now I don't think I want him as family. I'm still shaken.