aww :-(.. He has no right to make you feel bad for how you feel.. You can't control how you feel, for , or against him... the only thing that is bad, is for you to not be true to yourself.
It will more than likely get the idea of the break up into his head at least...I know when Cory asked me that I knew it wouldn't be long...of course he may give you a really sweet reason and then it'll be even harder...