Umm I still don't get what PDT is, anyone care to give a definition?

Neutrino, just 'letting go' as a comment or suggestion or advice from a T sucks, and a big cop out. At best, if your T is CBT (as I gather he is) you might be able to take one behaviour or way of thinking that you accept is dysfunctional and work on that, consciously trying to change or modify it, and that might work if you had a mutual agreement with T to monitor and measure it, but generally telling you to 'just let go' sounds like bollocks to me and a T who isn't earning their money.

Perhaps you could talk to your T about how his approach is making you feel, even if he's dyed in the wool CBT, it can't hurt to let him know how the therapy is affecting you. It does sound like you're stuck in a pattern of relating with this T that needs shaking up a bit - he's not going to adapt or modify his position until and unless you tell him what's going on with you. A risk, but worth taking

LL