Why can't you live together?!?!?! If your love is so important, that you want to get married, then NOTHING should be able to stop you...
It almost sounds like both of you are in college. While its very responsible to wait until you graduate to live together, it may be in your best interest to find a school closer to where he lives.
Definately don't get married, if you aren't going to be able to live together. Dating and marriage are COMPLETELY different..I know, I didn't believe it either