Guy trouble please help!?

ok so theres dis guy.ive known him 4 years already and we used 2 talk 24/7 and hung out a lot.its gon be 2 years on July 16(best day of my life ♥) and i liked him 4 ova a year already.he used 2 like me when we met but i didnt.i rejected him and then i went 2 the phillipines 4 a month.during the trip all i could think bout was him and i new i liked him. when i came back he said he moved on n liked another girl n i was crushed. then he started freshman year @ highschool n met ton of girls.n now he just broke ^ with his girlfriend but i no he doesnt like me. not after 2 years n i rejected him. but i still do n hes all i think bout n i realy want to be his gf. i graduated 8th a few days ago but ive liked many guys. but hes different, its more than a crush.its love.eveytime i hear a sad love song he is the 1st thing in my head.i tried for a year to get over him but i just cant..i fell 4 him hard.. any advice at all? i really want 2 no how i can get him 2 like me again )=