What they lack is the habitual practice of gratitude. Gratitude for what we have, not desolation at what we do not have. Oh yes, easy to say and hard to do.
They rush off thinking that life dealt them a bum hand and that if they change in all their cards life will be OK again. Failing to realise it isn't the cards but how you play 'em.
Beatrice, this was perfect!
Like you, I feel very sorry for my H.
B, I agree with Twink. This perfectly describes my H.
I, too, (most of the time) feel sorry for him. All that he's missing because at the end, he just wasn't able to cope with some of the things life hands out to us all.