I agree with both points about a plan in case he decides therapy isn't for him and if he's only going to gripe about work and doesn't address concern about his relationship patterns/styles.

There's plenty out there that couples can actively work on relationship goals/styles etc if not seeking something similar to premarital counseling minus the marital part but I hope I'm making my point. Love is an action not feeling. So action is necessary to back up the words which will ring empty without it.