One of my Ts has a side gig working as a therapist to death row inmates. They throw her all sorts of weirdness and it's her job to sit there and be stable and consistent and open to whatever they bring.

Idk what my point is. Maybe that your T ought to be able to deal with it, and how she does so should not be made your business or concern.

There's something to be said for working through attachment issues and patterns. But that's going to be hard to do with someone else bringing in complications of their own.