I wanna cheat on my boyfriend?

there's this kid that i was in love with last summer/the beginning of freshman year and he was in love with me too, bu my boyfriend HATES this kid just cause. he is a year younger than me so he's coming to the high school next year when me & my bf will bee freshman. according to my bf, i hate this kid too and he's always just been this weird kid thats been in love with me. i stopped talking to him once i started going out with my bf, bu we started talking again and things are getting intense. we're talking about hooking up and considering he's STILL in love with me (i'm 12,000% sure) and i don't really know how i feel about him, i'm considering itt. and the younger kid thinks hes better than my bf because well idk everything bu also the fact that i used to love him. oh btw, me & this younger kid never went out because of our age differance. bu we did fall in love and i can honestly say that me & him have only ever been in love with each other. and trust me i'm not into love at all i can also honestly say that me & my bf don't even love each other after almost 5 months of dating. neither of us want to get that serious because our relationship is more like we're best friends than boyfriend & girlfriend. people call us friends with benefits and we both understand why people would say that, bu we are still dating and call ourselves dating bu if i personally had to clasify us as ONE thing only, i would say its best friends. bu that's good, right? you want to bee going out with/marry someone or whatever thats your best friend? so we're all good. bu now this old flame is back and well......what do i do? cause me & my bf live in the moment & don't know what when where why how we're going to break up although we have talked about itt.....bu still like we live in the moment with our relationship and we have ******* FUN. all of our friends have really serious relationships and are in love and all this **** and neither of us are into love at ALL bu then if i was/maybe still am in love with the younger kid does that mean that i'm not meant to bee with my current bf? does itt mean that i just don't love HIM and i love the younger kid instead? like idk. i almost cheated on him once with another guy bu i never did, so its like do i actually like my bf or do i just wanna bee friends with benefits or something? idk what i want i want him as my boyfriend bu i still want to bee free like i was before with hooking up with other guys. that probably means we have to break up? or should i ignore the younger kid like i have been. because me & my boyfriend have talked about this, and we both know 100% that when we break up we'll still bee as close as we are now and still bee best friends.