I know he will try for me again..what should i do. i know ill fall for him again!! PLEASE HELP ME THANK U!?

a year ago there was this boy that was going out with my bestfriend and while they were dating he kept asking me out bc he like me soo much i rejected him each time then after they broke up w each other i told my bestfriend about what he was doing and she said dana he cheated on me dont fall for him but i fell head over heals for this kid and we talked every single day after school and he told me how much he liked me and of course i finally gave him my feelings but then one day he got kicked out of school and sent to a different one and we haven't talked since I still wonder about him a lot but the kid i like right now was his bestfriend when he supposivly liked me and i told this kid how much i liked him and found out he felt the same exact way so i asked the kid i like right now if his bestfriend the one that i no longer talk to ever did like me and he said no i dont think he did That kind of pisses me off really bad and im completely over him but hes coming back to my school..