Can l ask what is her Mother's take on this ?
At this point, I think she just wants her daughter to be healthy and happy. And she knows from personal experience how cruel the disfellowshipping process is.
She'll never leave the organization, but that has more to do with her dependency on her family and friends than it does her belief that it's "the truth". And the fact that she's ok with her daughter associating with me and my fiancé is very telling.