I think you may be on to something. Trying to look at things from his viewpoint a lot of what I am reading here sounds like PRESSURE. That is not to say he should not be stepping up and handling the pressure, but he may not be capable of it at this point.
One thing that I have always felt a little disgruntled about is that we had to go trough all sorts of evaluations when H was getting ready to go isolated. Our finances were looked at, we were evaluated as a couple, I was evaluated (can't have the spouse going wacko, while H is away, that might impact the mission! {insert rolling eyes here} ) and so on, but after him being isolated there was not one thing done to ease his transition back in to family (normal) life.
sorry, I don't have a lot of time today to clarify my thoughts. But what I am trying to say is that your H will not always be in the billet he is in now. Maybe you will have to buck up and live through another year or so of coaxing him back into family life, if you choose that it is worth it.
I hope this makes some sort of sense. If not I will come back and try to do better later.
Me 54 DS19 and DS17 Married 06/1989 Divorced 01/2011