personally, I think you should make him come clear with his feelings. This kind of sounds like you are a back up for him, but like you described it, it seems you were never more than friends, so it is a little bit different. I would suggest talking to him and if he also fancies you, you could try dating each other, but if he beats around the bush or still acts the same as you described fuck him off for good(even though you never were a pair or fwb, still). I know it is hard since you still like him, but I do think it is more of a habit, rather than strong feelings since he seems to be pushing and pulling you. Of course, I can't know how you feel, but that is how it sounded to me. I hope I did not sound rude in any part, but I just think you need to have an earnest and transparent conversation with him.
1) Were you okay with your friend telling him that? Sounds a bit like she ran off to tell him herself. But if she asked you and you were fine with it, then okay. But if she's over here telling him you like him without you being okay with it, that's not a friend. That's a drama-inducing lover.
2) He's not into you. He's had 3 girlfriends since you've known him. And he's about to have another girlfriend.
3) He sounds like a creep. Who the hell gets all handsy and kisses a person who is drunk? Lack of respect for your boundaries and feelings for him. Don't lower your standard for some creep.
4) Move on, girl. It's been 2 years, he's already had relationships. And as I said in point 3, he's a damn creep for doing those things to you while you're drunk. I don't know how you still feel safe around him, i sure as hell wouldn't. Cut him out, you deserve better than being someone's potential booty call.
I'm not sure what to do, there's a guy I've liked for about 2 years, and I always think I'm over him but whenever I see him again I realise I'm just not. He probably knows about it seeing as I told my friend and she told him about it like a year or so ago, and he's had 3 girlfriends while Ive liked him. He's about to get into another relationship, but whenever I'm drunk he kisses me on the cheek and shit and puts his arm around me and hugs me when the girl he's supposed to like isn't in the room, but then moves to her when she's there? He did the same the day his ex gf broke up with him, wtf am I supposed to do