I dunno, even if his boundaries are good, isn't the very structure of therapy such that attachment is inevitable not to mention all sorts of other intense feelings and impulses? And how can you possibly avoid this or switch it off, since it;s human nature? And aren't such feelings the ones that reveal the most about us and need to be examined rather than suppressed?

Just asking questions, I don't know anything. All these stories of transference, attachment, longing… not sure it is a good idea at all, and if the client is to go through with it, where is the discussion of exactly how it will play out and how it will help?