I think I'm addicted to sex!?

I am 20 years old and already had sex with over 35 different guys. This weekend made me really realize it when my friend from a different state came to visit with his brother n a couple other guy friends. They rented a house n I had sex with my friend ( we had sex b4 and we also always had a thing for eachother) the next day they went to a club and my friend fell asleep. I got really drunk and went in the pool naked with his brother and had sex with him. He found out and now he won't talk to me anymore. I also found out that one of the guys I had sex with is his nephew. I also have a boyfriend and we been dating for a week n he has no idea about anything. I don't know what to do because I am a good person I just don't know how to make good decisions. After this weekend I feel terrible and can't stop thinking about what I did. My friend doesn't wanna talk to me or anything. What should I do? And please be honest, thanks