What could i do next with my ex? ill answer urs?

Ok bascailly me and my ex have been broken up for a bit. He was a very nice guy but i am only 16 and i wanted to see other guys. This broke him and i could tell i have hurt him. Yet he was always very friendly in school and he has never been spiteful to me. I know that it would be hard for him be he has gotten over it and he has really tried. I have always felt gultiy for what i have done to him and wished i treated it much better than i did. Me and him have both went with other people but i havent heard anything about him in a relationship. The people i went with felt different than him and they didnt feel like anything else more than just a kiss. But things have changed now. we went to the formal together as freinds and i felt different. It felt like something more than the other guys i have meet and nore like what it was before. I even tried to kiss him and he pulled away and said *no chance*. i feel like im ready for a realtionship and i want it to be him. How could i get him back?