Have you considered doing the telephone counseling? I recall your wife is not enthusiastic about MB, but maybe Steve or Jennifer would be able to convey how important this is?

Sounds like you are doing all you can, and I would worry that you're not going to be able to keep that up long term without some love bank additions to your own account.

50+ yo couple enjoying our empty nest.
Young adult kids out on their own.
"Enthusiastic agreement?" is our catch phrase.