I agree with you kristi! When someone invalidates you saying that you feel fat or look fat it doesn't help, it sounds not genuine.

Helpful: telling me I look good when I try to look nice.
Not sharing my eating habits with other people.
Congratulating me when I eat healthy.

Unhelpful: telling me to slow down when I eat.
Commenting on the calories in my food.
Telling me that being on a diet is useless.
Telling me that it's useless to care about my looks when I'm only 17.
Thinking that just because you looked up bulimia on the Internet you know more about it than me.
Attacking me when I skip a meal instead of talking to me calmly.