I really miss my EX

We didn't have a messy break up and we were really in love. It's been 8 months since we broke up and i miss him so much. i've tried to date another guy but it wasn't the same as what we were. i always catch him staring at me in class but i don't know. i really want to talk to him again, just as friends but things are awkward and ughhhh idk what to do. what are you girls thoughts?