I want a boyfriend but i always stop myself...?

ok so me and one of my best guy friends always flirt and cuddle and tht stuff and he would tell people he liked me but then just wouldnt ask me out. like for reasons such as he is going to camp and this girl is all over him tht he hates and if she is a over him he dosnt want to hurt me and i believed it at first and then i realized it was bull. so i decided to move on. i have tried and tried and tried for about a year and a half and i cant understand why i like him so much. he isnt even smart and he can be a real jerk sometimes. it stinks. so anyway, my friends have told me just to hang with other guys and i will soon forget about him. so i keep trying to do that but i keep thinking about the other guy and stop myself when i get real close. i just cant meet anyone tht can replace him. he is always in the back of my mind. i really want a bf now! i see all these happy couples and i get so angry tht i cant forget about him so i can meet other guys. how do i convince myself to move on and let my self get with another guy. im 14 btw. dont say im too young because im in highschool and i dont wnat to hear it. 2 of my really good friends are going out and have been for almost 3 years...thats what i want!