my gut tells me its love-the feeling are right-the situation problematic-
It's problematic because HE IS MARRIED....I hate to burst your bubble but he cheated on a spouse to be with you. Even if he were to divorce, what would stop him from doing it to you?
As for his worrying about the money you spend to travel, that is total rubbish. He would pay your way or at least offer to pay half if he really wants you there. He's full of a lot of excuses, imho.
Please don't take what I'm saying as a way of bashing you.....I have been in your shoes, so to speak, and I don't wish the kind of pain I had to go through on anyone.