Thanks for checking in on my thread. Sorry you're having a lonely day. Your job sounds very interesting and satisfying, but I can see how you might occassionally feel isolated.
I sure can't read into what your H is thinking and/or feeling. Given how incredibly non-committal he's being, I think you should definitely make all life decisions assuming he's NOT going to be part of your life. Sounds like you're doing just that. How often are you available to him? Maybe you should not take some of his calls. Being so far from him limits some of your DBing options, but has the advantage that if you choose to "blow off" his calls, he will have no idea what you're doing, and that might really get his curiosity going. With him contacting you as much as he is, he's not going to like the idea of you moving on without him.