Lots of people have relationships where they never live together, and see each other a few times a week. They go along like this for years, decades even. I knew one pair that didn’t even live in the same country. What I think you want is a relationship but not a live-in partner. Just make sure you are dating people who want the same kind of relationship as you do, basically a permanent long distance relationship.
Guantanamo Bay seems pretty secure already. Why not just send him there?