Just wanted to add my two cents. I agree with the others that long distance sucks, but I disagree with the notion that it always leads to separation.
My girlfriend and I started dating in high school and did 4 years apart in undergrad. We were about 8 hrs driving distance from each other, so we still visited on holidays and long weekends and we were very intentional about healthy levels of communication. It sucked and I would never want to do it again, but I'm actually kinda glad it happened. We both got to grow as individuals and discover ourselves outside of the other person. Now I think we're a stronger couple than before doing long distance.
I know that's not possible for every couple, but my point is that it depends on who you are. You need to be very confident and committed to making the relationship work, but in the end I think it will only make your relationship stronger (assuming it stays intact).
Hope that helped. Best wishes towards you!