You don't say why this guy's moving away. Is it for work? If so, and he seems keen, then I agree with Leapers. An hour and a half away really isn't all that much. You could easily take it in turns to see each other at weekends, or arrange to meet mid-way between where you both are. Put that way, a 45 minute journey is quite attainable - even during the week. I often visit friends who live a 2 hour drive from me, and if I was going to meet someone that I fancied, I'm sure it'd seem a lot less! Best of luck!