Instead of looking for someone who won't give you stick for being fat, why don't you adopt a healthy lifestyle and lose some weight? Simply eating fruit as a snack instead of chips, and cutting dessert can have a big (pun) inpact. Drop the sugery drinks like coke, drink water with a splash of lemon juice etc etc.
The trick is exercise and good tasting healthy food, so you don't think you're depriving yourself.
Keep at it!
GG