Sexual assault/rape question

Hi I am a freshman in college and I've been struggling with this experience I had a few months ago one night my friends and I went out and I got super drunk and high and I decided to stay away from boys to be cautious. This was the first time I had gotten high so I was extremely messed up and my guy friend told my other friend who is a girl we need to take her (as in me) back to the dorm she's not ok so eventually we go back and it's me her him and a few other friends and we are all In my room and everyone leaves to get food except me and this guy who is my friend (also high and drunk but not nearly as drunk as me )and i vomited and he saw he saw and knew about it and I walked into my room to sit on my bed and sober up or whatever and the next thing I remember is he's on top of me and after that I remember him being inside me and that's all and the next morning I asked him about it and it seemed like he was being vague and wouldn't tell me much about it but he claims I said it was ok Im very confused and I don't wanna sounds dramatic or like I'm seeking attention but I really don't know what to think about this situation if you could provide feed back that would be greatly appreciated thank you