Okay, I feel like I am making progress.. even from across the world.
After H got back to his own country, my plan was to not contact him at all. I would respond if he emailed me, and I would be extremely friendly, but I would not ask any questions or do anything that ENSURED a response. That way, any response I did get would only be because H wanted to.
Well, I have received a few emails since and in the latest one today, he's even asking me questions i.e. keeping the conversation going.
Of course, he's still not bringing up the Skype chat he mentioned at the airport, so maybe I'm not making any progress at all, but..
