I never want to be friends with a fat girl.
Ouch, Why would you want to be friends with a fat girl?
I want to have a slim girl as my friend. If she doesn't loose weight, she will never be my friend again
It is mean to exclude people because of their weight. You should be nice to everyone and maybe try to get them some help if it is getting out of control.
If she is not losing weight then that is her fault. I should make her feel bad about it and embarrass her in front of everyone
If you act that way everyone else is going to see how mean and hate-filled you are. You might lose friends for your opinions.