Tried to look out for my friend, instead she attacks me.

Had my birthday party last night, and my one "friend" tells me she wants to drive home and she's super drunk. So I grabbed her keys and I kept them from her. She was screaming at me and freaking out on me and telling me that's she's going to smash me in the face if I don't give her keys to her, so I just walked away and told you she'll thank me in the morning. Then she runs at me grabs my throat and kicks me in stomach! I have a massive scratch across my throat now and bad cramps in my stomach. She doesn't know I'm TTC but I hope that didn't do anything bad because I'm in my TWW. But who does that!! I kept telling her that I'm just looking out for her and she just attacks me!! I don't know if I even want a friend like that in my life...