cantbreathe.......Sorry you are hear.but you are in good company.
Has he looked into any help,can it be depression ?.I don't mean to imply I just speak from experience.it can turn any rock into a puddle of mud.That along with financial strain,kids, approaching the big 40.all of these can be factors.
And as DW said step back relax.strap yourself in take a deep breath.Don't push him further,at times it will be tough.keep hopeful,keep DB'ing
Good Luck God Bless
H 49 W 42 S 19 S 14 S 12 S 8 D 6 M 19 Bomb dropped 2/09 Separated 5/09 still hopeful, praying