A friend brags about how thin she is when she has fat spilling over her pants. I'm glad she's confident, but I'm not glad that she ALWAYS calls me fat. I'm bordering vegetarian, I'm 160 cm & 50 kg (normal BMI). So why does she say that?

Hey we all want to be confident and not have to think about
how thin and fat others are , there is no perfect body shape and to some girls they want to be thin but to some they want to be curvy , you’re friend may be a very confident person and probably says that to be confident in herself instead of saying she’s fat , and to me being thin isn’t something to brag about and isn’t tat good , like im thin im 160 and 46kg and people say im skinny and that’s good , but to me I want to be curvy , but to lots of girls being skinny is their ideal look , looking at how tall and you’re weight you don’t seem fat , so she must either be really mean for a friend or shes just jealous you’re skinnier , maybe youre curvy and skinny at the same
time so she reckons you’re fat , maybe she considers you to be fat because she wants to be really thin and trying to
make herself seem thin but you don’t know why she does? But im sure theres personal reasons