Well, it sounds like you really value your therapist and if he strongly feels this will be helpful for you, embrace it with an open mind. Whatever is going on in your life is not working out. I'm not sure what that is, as you haven't disclosed that piece, but I do believe things happen for a reason. Such an irritating "cliche", I know.

Stay strong and keep your focus. I'm glad this guy is out of your head now.