Well - just how far away are you moving? And what do you know about this guy?
It's true, you make oxytocin in your brain during sex and that's the bonding hormone - so try to look at this as objectively as you can, might just be hormones talking. But, if he looks like a great match on paper, and you're moving within a distance that he could come visit you periodically.......you could always wait to make a decision.
I had a boyfriend who lived an 11 hour drive away. It was a pain in the neck and I only saw him once every month or two, but if other things in the relationship had been different, it would have been totally worth it.
