<human>: I made this reddit account simply to avoid wtf posts on the front page, but the feelings I've been having about my relationship have bothered me so much recently that I've gotten desperate for a little help/perspective. I hope you guys can help me out.

My boyfriend and I have dated on and off for almost two years. Each time we broke up, it was my choice. I felt that he was too busy, emotionally distant, or un-thoughtful. When we broke up he would always do something exceptionally sweet to get back together. However the last time we broke up (about 5 months ago), I was the one that came back to him. I missed him and began to appreciate all the changes that he'd made for me (he learned how to be emotionally supportive and to make time for me). 

The problem is that I don't have a firm belief that he is "the one" and he has now moved to another city (so we are dating long distance Boston/Washington DC). We talk very seriously about the future and have decided that being apart for a few years is not a big deal if we end up together forever. I am just not sure that he is the one i want to be with forever. Do I need to be sure? I don't want to waste either of our time (since we are getting older), but I'm afraid to break up with him because I don't know that I'll find anyone better suited.

Can you condense the text into three sentences or less?
<bot>: Should I stay with a guy I'm dating long distance if I'm not 100% sure he's the one for me?