I don't think of her as "my" anything. Sometimes I refer to her as the therapist or that therapist. I usually think of her as the or that woman so it is what I write.

Sometimes I think therapists remember things because they write them down in notes. Some, I would imagine are simply better at remembering trivia than others. I remember odd things from time to time about my students or clients. I remember, for example, and for no good reason, what one student called her grandparents when she introduced them to me over 6 years ago at an award ceremony.