I am ALL FOR this new approach...it is grounded in solid behaviourism (a la your dog training analogy ), yet tailor made to the unique situation that is YOURS and WOLFIE'S.
You've mentioned more than once that what you're doing now might seem controlling...have you asked W? It sounds more like he's relieved when he unburdens himself.
Wolfie's life experiences (and genetics) HAVE, unfortunately, set him up to have difficulties with emotions, expressing them, identifying them, sharing them...perhaps he NEEDS this gentle prodding (very different from the former..."let it build up and blow" technique)...
Perhaps it will help him to tune in, and turn to you.