i think I was raped but I'm not sure if it was.

The other day, I went to my friends house because she was having a going away party but it was just our group of friends. I got really drunk and I only remember a few minor details about that night. I didn't have a ride home so I asked one of my guy friends who used to be my best friend until we hooked up a few months ago when my boyfriend and I broke up. Anyways, on the night of the party, I remember that the minute we were alone, he started making out with me but I backed away. The next thing I remember, I'm in the backseat of his car naked and he's on top of me just finishing and pulls out before coming. I also remember arguing with him but I don't know what about. I remember hitting him a couple of times and I remember him saying how I was just another bitch to him and that when he goes home, he's gonna check my name off his list. I remember getting out the car and i started crying. I had a whole bottle of liquor and a few beers and I also smoked two blunts. He didn't drink at all. I blocked his number and on social media. I'm scared to see him. But I'm worried that maybe it wasn't rape. And I'm so afraid that he's gonna tell people. I'm anxious all the time, just thinking about it makes me wanna cry. I haven't been able to stop thinking about it since it happend. Ugh 😓