Does anyone here have some advice about ex boyfriends for me?

ok well i do. there is this one guy, joey, and i have known him since the 4th grade. i see him all the time now at our new school, we had been going out for a while before last year. I am now going out with another guy, and everytime i see joey, my hearts melts and i dont feel like i love my new boyfriend like i should. anyone have some advice, because i love this new guy like crazy as long as joey isn’t around. HELP!