Not all men are like this. I'm a man, for one, who would love to be loved like that. Unfortunately, my experiences of the past just didn't live up to that. I can relate, as a man, to the ability of wanting to deeply love the ones you care about, whether romantic, friends, whatever, and not quite getting that back in return. It sucks, but unfortunately that is how most of the world is. Yet, I cannot be anything than what I truly am, so I say keep being who you are. Maybe he'll snap out of it eventually and appreciate everything you do for him.