EXBOYFRIEND TROUBLES!!!!!!!!!!!!!!?

Hey i need help! Over te summer i brokeup with my boyfriend Justin b/c i didnt see him the whole summer then recently i just went bck 2 school and the first day i started 2 like him again im afraid 2 tell him b/c another gu tim asked me out over the summer and i said yes and tim brokeup with me last week i realized how much of a jerk tim is b/c he thinks hes 2 good 4 me but Justin he would always encourage me and be so nice 2 me and tell me all these complements and sure we had fight but we would always get through them in a nice way without me havin 2 say sry when i didnt need 2 and him bein the one actin like he did nothin wrong, but tim on the other hand was tellin me wat 2 do sayin i wasnt hot enough 4 him and he would say wat im doin wrong never wat im doin right then he would act like hes all perfect i felt like i had no control wats so ever he would always be so idk unencouraging i mean ill give the fact sometimes he could be really sweet and creative but idk. Well Tim brokeup with me last week. And now lookin bck i realize hhow much i appreatiate Justin i now im fallin in love with Justin again shpuld i tell him wat do i do!