I feel you, Industrialsize. My brother just moved back to Thailand. I'll miss him very much.
Try to make a "just for us" vacation time happen, and try to save up for that in order to make it work. (I have no idea how much money you make, but we with normal salaries have to save for vacations, thus the advice.)
I've remained close friends with people who've gone back home to Germany, South Africa, Ecuador, India, and Canada. Email has been a lifesaver, as well as the steadily decreasing cost of making a phone call.
My best to you,
NCbear (who hopes Indy will travel down to Fort Lauderdale for a housewarming party very soon)