Please keep in mind that men are basically defined by their JOB (or) the ability to perform the work/job - so this is going to take some time for his healing to start.... for this is a deep emotionally issue for him - it touches his CORE being of who he is as a male.
I would suggest that you start with UNCONDITIONAL RESPECT of him at all times, even when he is being unlovable.... he needs support & love beyond all things right now (AND) well, Men feel loved when they are RESPECTED.
LoVe,
Rhapsody -

P.S. - and don't forget the SEX.... men need sex to feel whole as a man and as a husband - his way bonding and being safe when all around him is going wrong.