My friends are mean to our friend who gained weight.Should I defend her or follow the crowd? HELP?!?!?

ertiveness training is needed. stand up for her. it's the right thing to do. the other ppl, they are losers. standing up for your overweight friend is the right thing to do. practice being ertive. you need to stand up for her right away. If they don't like it, dump them. don't hang with them, don't call them, don't eat with them. dump them.