Ok this is going to be a long story...

Im really confused and don't know what to do to save my friendship right now...

Me and Rob met in August last year, were sort of 'seeing' each other for a few weeks but then he decided he wanted to be with someone else properly. That was fine cause I had sort of decided we'd make better friends anyway, so we've been really close best friends since then cause both of us live away from our family and other friends so having each other was really important. He broke up with that girl soon after and we continued being besties but occasionally hooking up at parties and stuff (whoops! Haha). Recently he/we got this big group of new friends at school and I realised for the first time that I was jealous of these chicks he was cracking on to and flirting with, so we discussed it and decided to not hook up anymore and just be friends cause he doesn't like me as more at all.

Then on the weekend... we went to a party with this group and he was making out with a bunch of chicks like a meter away from my face. I got upset and when he was alone told him he was out of line. In his drunken state he started to tell me I was annoying him, that I reminded him of his ex and he hated me for it. He said he wished we'd never met cause his life would be better etc etc.

He ended up chilling out a bit and I stayed at his house (platonically... cause of the new rules haha) but when we woke up he went straight to work and now he's not really speaking to me.

He's recently gone through a divorce so he's all messed up but I've never seen him so angry and hateful

I don't want to lose his friendship he's honestly the best friend I've had in years, but I don't know how to approach making this better. Should I just pretend it never happened or leave him alone or talk to him (I seriously doubt that would help right now).

Sorry for the long post a have a million thoughts in my head right now haha

How old are you? At first, I thought this was about a couple of teens, then you mentioned divorce.

Haha tell me about it, it's the most childish situation. Mid 20's.

When I said school I meant Uni

haha tell me about it, its the most childish situation. mid 20's.

I'd leave him alone. No contact at all. If he values your friendship, then he'll contact you. Remember, you were supposed to follow the rules, and you didn't.

Sometimes being drunk results in the truth being told! He really doesn't want a relationship. A good one needs honesty, respect, caring, and a willingness to talk about anything. I think you feel toward him more than just a friend. Life is difficult and the more you stay with him, the more difficult it will become.
I would try to move on, find myself some new friends. Smile, and others will want to talk with you, and you will make friends. Good luck.

If you don't love her then leave him alone. If he needs your friendship, he will contact you. Don't make it worse by forcing yourself or him. Do u really only consider him friend or there is more? If there is more then I would suggest to stay away from him unless he realize that he wants you as friend or more.