Kinda both a secret and confession

So I’m really fat and I know I’m fat, the world knows I’m fat, the person walking in-front of me can here my fat. And so I kinda stopped eating. And I don’t want to but I feel like it’s the best and I try to hint to my girlfriend that I am because I can’t stop on my own and I kinda just what some emotional help but she doesn’t care. Every time we text it’s always about how she thinks her mom hates her because her mom made her to the dishes or something and I don’t want to tell her after her rants because then I’ll just be putting the attention onto me and every time I even try to say or even hint at it I can’t even get to the part I want to say because it turns into a rant. And one time while on the phone I told her that I’m fat I should stop eating and all she said was “don’t” and doesn’t even cheek if I do or don’t because she knows that I’m so fat that I won’t do it because I’m a fatty that likes food. But I have but like I said I can’t bring it up because of all her rants. And.... idk thanks for listening if you read all this. Just wanted to get my feeling of neglect out. Sorry for wasting your time