His wife looked really pissed off.
Just tread carefully. Even if he is feeling against it at the moment, it could always backfire if he has a bout of cognitive dissonance and jumps back into it.
I agree with the other posts, you must tread very carefully or you could end up with egg on your face. How well do you know the pissed off wife? Maybe, if you get the chance to chat to her after the meetings, you could do a bit of undercover detective work. She might say something that could give you a better idea of what is going on here, without putting yourself in a vulnerable position.