I hear from a lot of betrayed wives whose husbands "refuse" therapy, insisting that they can solve their own problems.
This goes right through me when I read this. It's so depressing. I see it as the WS saying "Let's guarantee this R thing doesn't work, and how about I further damage our relationship and your mental well being."
It screams to me. I've read it before and it's true. Their very best thinking got them here, they aren't capable of doing better on their own. They need professional guidance.
TT for 6 months
Unremorseful for 3.5 years
Delay is the deadliest form of denial. - C. Northcote Parkinson
Your standards aren't up for negotiation just because he/she can't meet them.