I'm moving...advice?

I'm fifteen. My current SO and I have been together since we were 13. I found out a little while ago that I'll be moving 1,602 miles away from here. We've talked about trying long distance, but not too much in depth. He treats me beyond well. Like I'm royalty. I know he loves me, and I love him. I'm scared. Should I talk to him more? Should we break up before I move or keep going..? I mean, I've seen him cry about me leaving and I don't want to lose him. He doesn't want to lose me, either. Help?