Help! ***10 points***?

My bf and i broke up 3 years ago. But we never 'officially' broke up. I still really like him, and since we used to go to a small school, we would always be with eachother. Now that we are in a bigger school i dont c him as much, and i feel really sad. i seriously think im in love with him. he always used to put his arm around me, and other stuff, but he would half indicate that he was joking. His friends would kinda indicate 'jokingly' to ask him out, but in a strange way it kida seemed serious. nd thn he would blush. im not sure if he likes me? what do u think? i want to get back together, but im not going to just ask him out..cuz (1) i nvr c him..nd (2) we hve a fragile friendship. in 4 years i am never going to c him again..nd i relly do not no wut i would do if i could never c him again. i would jst hve no reason for living. hes my everything,but he doesnt no it!