On the pulling back thing - I too have been reading - In my case Men are from Mars etc and associated books and it strikes me from this particular angle that your H is merely retreating into his "cave" for some r & r time.
If he, like me, finds it difficult to have his life "organised" for him, IMO this is quite understandable.
Perhaps he needs time to feel in control again and then he'll be open to ideas.
I think -don't look on it as a backslide, but as an additional bit of information to take into consideration next time round.
May be way off target here - and if so "sincere apologies".
Best - GFI
Me: 40ish W: 40ish Together: 20 ish years Married: 10ish Years