I only get annoyed because as a child she eats what she is given by her parent/s and she cannot change the way she looks, I think its a shame that an adult feels its their right to take a cheap swipe.
nothing wrong with finding someone fat, ugly ect, but like the old phrase "if you cant say anything nice then dont say anything at all" callous remarks only serve to strip a person of their self esteem. as an adult you should be able to keep these comments to yourself. luckily she will never read these comments. but I hope you wouldnt see fit to make comments in real life to children regarding their appearances.