Most Helpful Guy
Most Helpful Girl
You both have Only been together for '3 weeks, dating,' and Hopefully Counting With... Keep in touch.
He may not be totally into a LDR, which is one of the hardest to Have and to Uphold of Any relationship. And with him trying to be this Honest John, with keeping you in mind, 'Keeping in touch,' in Time... You will see if he keeps his word at least in being a Friend.
If you both find yourselves pushing those buttons after you go, contacting one another, then I don't see why distance should keep you from at least getting together when you both have the time and the money and Eventually... See if there is More in Store.
For now, he probably 'Cares' but just doesn't want to 'Commit' to You or Anything heavy, and even when you both were at face length, he still may have been keeping you at arm's length with no strings attached.
Good luck. xx