Same way my H tried/tries to be. Sometimes they just can't help it. It's them against theirselves and consequently us.
I 've been reading a lot of threads here on the BB. There are some cruel, unstable, "crazy" people giving a lot of crap to their spouses regarding kids, money, abuse, physical & mental because of drugs, alcool etc....
Sometimes I feel lucky my H is pretty much OK and I think that in some cases I would have dropped the rope if I were in their shoes a long time ago. I feel great respect for these spouses still trying to save the Ms.