<human>: Every time I come home for the holidays my mother spirals more out of control, whether its from her drinking or her terrible treatment of my father. She was only tipsy when this happened, but she started screaming at my dad for absolutely no justifiable reason (she asked how he thought the night went and he said 'fine' and that wasn't good enough so she exploded) and after a few minutes of her degrading him within earshot of me and my neighbors, I stepped into the room to try to calm her down and she slammed me into the wall and punched me in the face. I didn't say anything, I just got my car keys and left in shock.

How do children of parents like this deal with these situations? There are too many details to really understand my personal situation but I am actually worried that I've been just repressing everything and that I'm not thinking this is a big enough deal. I was planning on acting like it never happened because its less trouble that way. I would really appreciate some insight.

Can you summarize the given text in a few sentences?
<bot>: mom tipsily punched me in the face and I don't know how to go ahead with our relationship now that a serious line has been crossed.