chapman, a second welcome from me! We're glad you're here.
The only type of help she will allow is for an eating disorder.
What kind of help is she getting for her ED? Agree with OH, therapy for eating disorders will likely involve introspection as to the source of the trauma. It can be so very frustrating to want more for your child and to see them get the help they really need. Change is slow, much slower than we'd like.
Sometimes change takes weird turns. I encouraged my kids to seek counseling for their depression. They've now decided I'm the source of their problems. I'm not, and I suspect even they know that, but I've been the most consistent source of support and love for them, and perhaps they feel confident I won't reject them? It sure was a surprising twist.
It's really hard for me to see things happening that feel outside of my control. It helps to give myself something to work on, like my own well-being. When I'm healthy and well, I'm a better support for my family, and I have more clarity to know how to respond. Setting healthy boundaries gives my child the best opportunity learn responsibility and self-care.
How's the grandbaby doing? Are you close?