Does he like me or is he just drunk?

So this guy and I flirt none stop when we're together but that's really only when we're drunk. He gets all touchy feely and close but when the alcohol is taken away he still flirts but not as openly.

But the main problem is that he's still hung up on his ex after 8 years and still brings her around. She's moved on, so why can't he?

So I can't figure out if he actually likes me or if it's just drunken flirting.

So ok that's two question but sorry .
Does he like me or is he just drunk?
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