I need some help, please? :)

Well, there's this guy (of course). I'll call him SS, just for reading purposes. Then there's this other guy, SR. My story with SR is when I was younger he and I were really close. He liked me, then after he stopped I realized I liked him all along. I left that school that year, and we never said goodbye to each other. Meaning, there was no closure, no nothing. Those feelings have only grown stronger with time. I'm probably going to see him at Homecoming at their school. SS is a guy that I was friends with. He acted just like SR and stuff, and he and I dated then broke up. I'm still not over him, nor am I over SR. I really want to get over them so I can move on with my life, so, got any ideas to help? It's much appreciated