Did you say how old she was? Cats also grieve for their former owners. I tried to rehome RB Maggie years back and she lasted a week with the other lady. i had never heard of cat grieving until that time. Later Maggie lived mother, but Maggie knew mother.

Callie, my bedroom feral, doesn't like me. I can give her scritches from a distance. Crazy I know.

Keep at it. At least she is out and working with Phinehas.