"and tell him that we both need to concentrate on what it is that we want?"
She says "We need to concentrate on this and that".
He thinks "Who the hell is she to tell me what I need to do?!"
I've found that what works best for me is, not a conversation, but a simple, non-threatening statement that doesn't have to have an immediate reply.
"I know that you have a lot on your mind right now because of your job. I just wanted to let you know that if you want to talk to me about it, I'd be more than happy to listen to you."
Then drop it, and let him take things from there. You've opened up a door, and given him an opportunity to peak through if he wishes. And you've done it without any pursuit, pressure, or OR talk stuff.
IMHO
JJ
Read about Divorce Busting® Telephone Coaching here!