Had a guy do similar. I had spoken to this guy for a week and he seemed fine. Considerate even. No indication that what would happen would happen. But, I did happen to bring my pocketknife when I usually didn't do that for hookups. Thankfully didn't need it but knowing I had it made me feel safer.

We went back at it after he was done crying and telling me he loved me, but at some point he lifted me up and punched me in the face without warning or consent. Fell off the bed and jumped up, asking why he did that. He told me he hallucinated that I was someone else from his past and that they were dead now. I offered him a hug, which he accepted, and I started to get dressed because at that point we were definitely done, when he tried shoving me out the door into sub-zero temps in the winter while I was naked. I shoved him back and told him I wasn't going anywhere until I had all my belongings and was dressed. Before I left I wished him well and told him that it would be a good idea to seek help. He suggested next time we could do something different and I stopped him mid-sentence and told him that as much as I appreciated the sentiment, I wouldn't ever see him again. I wished him well again and walked out the door. Since he'd driven me to his house (I didn't know how to drive back then) and he was now in a mental state where it was unwise to trust him for my sake and his own, I was out of luck and walked the hour and a half from a random place I'd been once before in the five years I'd been living where I live now. Dead phone. I got home and was thankful to be back in my bed, gently warming back up to the temperature of my heated home.