I don't think that therapy can just be about preserving an attachment. And I think the point is to grieve the loss of T and therapy before the therapy is finished. So I think I would see current T until I had my "happy ending", complete with grief and celebration, and then I would move on to a new T.

Oh, and I guess if someone wants to do therapy just to preserve the attachment, that's okay for them. I just wouldn't spend my money in that way-- I either need therapy or I don't-- but that is my value, I didn't want it to seem like I was making some universal declaration above.