I have had a similar issue, mostly in my 20s, when I felt very disconnected (for the first time) from my mother after my father's death. I too became "friends" with older women around her age.

Eventually it resolved itself as our relationship improved and returned to normal, and that pattern stopped. Still, I have been very wary of not repeating it with my therapists - they are not as old as she is, but they are old enough to be my mother.

You probably do feel this way because you wanted more closeness to an older woman. I don't know your current therapist's age or gender, but it's something you should bring up. It sounds like you try to please these women instead of living for yourself. I'd describe it just as you did here.