Was I just taken advantage of or sa'd?

This question has been bothering me for ages now. It was a situation that happened when I was 15 the first time I drank alcohol, and the guy was a few years older. My friend only knew how to get alcohol through him and she ended up dissapearing at a few parts of the night talking to other guys. We were drinking in a public bathroom when she left and I drank way too much. The guy I was with was barely drunk and I have vague memories of calling my friend for help and saying that I didn't want too. I passed out at one point as well, but I do remember being way too gone to get out of the situation.

Ive talked about it to a few of my friends but never in detail (this isn't either). He told me I was being dramatic and that girls think everyone rapes them. I've also had someone else say it wasn't sa and I just got taken advantage of. I'd honestly like to know for sure what happened.