It sounds like you're doing okay so far. The distance may be working in your favor.
The core of DB'ing as I understand it, is:
Be the best Ris you can be. Do what works. Stop doing what doesn't.
Back off a bit. Don't send him any emails or texts for a while and see what happens. Once he's had a chance to miss you, you may find him seeking you out. Let him.
Do you have any insight into what caused the change in his behavior once he went overseas? Is it possible there is someone else?
