Imaginary trauma?

I have a daughter who is suffering from a supposed trauma that may have never happened in this life time. She is 29 years old. Possible high functioning autism… living on her own away from home in ** where she graduated and hold a BA from Saint John’s College.

She has been hospitalized twice. The first time with acute state of dissociation. We have brought her back home with us (husband and wife) three times, each of them she fights being here and wants to live alone and goes back to SF where she reestablishes her working and living situation to at some point return to a difficult place and starts looking for mom or a surrogate (a friend of the family)

about 6 months ago she joint AA, explaining to us that she was abusing alcohol. She is still with the group and has a sponsor with whom she is working of 4th and 5th steps 

Today I got a call from this friend of the family saying that she is back obsessed with the well known trauma of rape and horrifying physical abuse. 

I am at a loss wondering what is my role with her. She has shown despondently that she does not want to live with us longer than a week…