This guy isn’t interested in you. If he was, he’d act like it. Since you’re the one that pursued him, he figures you’re fine as a friend, and that’s how he treats you. That you made out when you were both drunk isn’t really girlfriend/boyfriend behavior. It’s just drunk behavior.
I never recommend that women make the first move because it prevents them from knowing how much a guy likes them. But in this case, I think you made the first move because you knew he wouldn’t. Now you’re trying to pretend there’s actually something there, but there isn’t. Just your crush.
In addition, you’re creating drama in your head by painting this whole story of class difference, his background and living situation — but the truth is none of that has ANYTHING to do with the fact that he’s not interested in you.
It’s fine to have a crush on a guy and even a massive one, but if he’s not interested, and he’s only calling you when he’s drunk, you really owe it to yourself to move on and look for a man who’s interested in you for more than drunk company. 😳
Forget him, and work on your own problem: Finding a good boyfriend! 🙂