This happens to me a lot too- I'm FAT. I'm 228 pounds, and guys who "won't date fat chicks" express interest in me all the time, I don't get it. Make up your minds, guys. lol
If you not skinny nor fat then it will explain why he loves you, you said he's not into fat girls and you not one of them so where's the problem? Self-esteem issues perhaps?
Gal c'mon shake it off and remember beauty is only skin deep. Am sure there are more enough reasons why your man fell in love with you and stop fussing about your body it could be the last thing on his mind your his diamond shouldnt that be enough?
I wouldn't your pretty lil head sweetheart. You're BEAUTIFUL!!!!
You must be beautiful to him.. Beauty is in beholder's eyes. Congrats.