Jim,
I remember Barb's first and last post. I remember her concern for you in the beginning. And, I seem to remember her frustration towards you posting about your breakup story on line and for some of us rooting for a happy ending. (I think I was one of those guilty parties rooting for the fairybook ending

)
I think she was sending a message to tread lightly. If I was in her shoes, I would not want my first and last name along with my home address published with a plea for letters supporting my (current or ex) significant-other's point of view.
Be careful, Jim. Maybe one thing to consider is the emotional toll that cancer has on the caregiver. She's been there and continues to be there for you when you need her the most.
I think someone suggested babysteps after all you have tried. That might be a good suggestion. Another idea might be to remove her name and address from your posting.
If my husband and I were not in a good place and he did something like that, I'd be hopping mad.
Just my humble opinion.
Wishing you well.