stuck

I start to write a post and I stop. I have a million feelings and I can't always translate here. I just freeze.
She's becoming more and more emotional. A lot of anger is coming through. She's refusing outlets, though she did ask to do one activity at school. Long gone are the days of sewing, duct tape and all her there favorites. I'm not hearing about her friends as often and when I do she seems to be unhappy with them. Her best friend she has had forever isn't around a lot. The last time we saw her it seemed strained. The girls are school she was hanging out with are "mean" girls. She said they do things like laugh when people get questions wrong. She doesn't want to deal with that. I don't know if she's alienating herself or if it's that bad. The other one didn't and doesn't have these issues. I'm not comparing them I'm just pointing it out. I don't get it. She won't talk to me so I don't know if I'll ever know the truth. It kind of pisses me off. It's destructive behavior and I have no idea what to do for her. She's in therapy. She has support. What else can I do?
As for eating ... not much has changed.