Should I try to find him, and work it out, or just leave it alone?

Okay, in 1997, while a high school sophomore I met this guy, he was a senior and instantly we were hooked on each other. We were together for 3 years, off and on(more off than on), until I graduated. I didn't go right off to college, it took a few years before I did that, but after high school, we hung out a lot, and we still were intimate, even though we were just friends. We tried to be together, we loved each other, but I didn't have my life together, I wasn't responsible, I was still a foolish teenage girl, even at 20. I had a job that I would go to in order to spend time with him, I got my car repossessed, because I wanted to be with him daily. I wouldn't go home until I dropped him off at work, at 11p.m. I still loved him even when he cheated, I've never cheated on him. When we separated I did have another serious relationship, that lasted off and on for a few years, but, I'd always try to go back to him, because he was my 1st love.I went away to school in Kentucky, and we wrote each other every week, and he even talked about us getting married one day! Here is the situation, I've been thinking about him so much lately, because besides being lovers in the past, we were really good friends that had really great times together. It's been at least 2.5 years since I've spoken to him, but since his big brother works at a very popular place, I will see him, catch up with him, and ask how he's doing. I know where he is, I don't really care if he's single or not because we can maybe just be friends. I still love him, and wonder if maybe now since I am more mature, should I try to find him, try working it out, or just leave it alone?