Long Distance Relationship

I'm in a long distance relationship and I need a story to give me more hope. I'm 15 and he's 17. We lost our virginity to each other. I'm in Minnesota he's in Kentucky. We've talked about marriage and kids but I just need a story about a relationship that lasted forever. I love him but I'm just doubting that well ever be together forever. No he's not done anything wrong. It's just that I feel that were so young and far apart people keep saying it's no use of even having a relationship or that it's not going to work. I really need something to give me hope.