I hated the idea of losing her too. I don't talk to her often, but text or call once every couple of weeks and meet her for lunch every once in a while. She is also my only contact with her grandson, who I raised as my son for almost 2 years, and during that 2 years, my daughter was treated as her grandchild.
It bothers me that I find myself questioning her motives here, and it might be easier to cut ties, but I'm not ready to do that.