I'm so sorry you find yourself here. Long distance or not, this is a good place to be.
A couple of things about your sitch jump out to me. This is just from experience and from what I've seen, the whole " I want to be alone" could indicate OW. I'm not saying he does, however that is a common association with that term.
And this sounds crazy, but many of these scenarios while frequently similar, are unexplainable. So you will only make yourself crazy mind-reading. It's a waste of time.
I know the visit is only 3 hours and listen to what he says. Let us know what transpires.
3 kids BD 12/15/13 (IDKIILY. ) Rope dropped Cirque du Soleil style D final 9-9-14 "Some people are born on 3rd base and go through life thinking they hit a triple." Barry Switzer