Most Helpful Guy
being a guy we live in a different world, he might've loved you and all (might still do) but sometimes you have to put no.1 first. he didn't break up with you because of you, it was probably because he genuinely feared for his safety/reputation/sanity and happiness because when you have a 'desirable' girlfriend (and big butts are magnets to guys) then other guys might be trying to intimidate him because they find you attractive too. this was probably going on quite a while and the guy just thought it was all too much. don't hate him for breaking up with you because he probably did it to protect himself - which is what you would want, right? (i mean think about it this way, if he got beat up because someone else fancied you, you'd feel really guilty. he was probably trying to protect himself - and possibly you from any harm/stress/guilt.)
hope i helped and if you need any follow up info, or anything clearing up, just reply to this comment
(god i sound so professional XD)
Most Helpful Girl
Yeah, sounds like a break up reason - in grade school...
Maybe your boyfriend was just mentally at that age though. O. o