I would bet his ego is getting in the way of any displays of well-deserved contrition. The pettiness we see in his foolish actions speaks of a man who is trying much too hard to suppress his humility.
"Pride goeth before destruction, and an haughty spirit before a fall."
Again, I am sorry that this is happening to you, Irish. Your H is allowing his pride to blind him to the sad fact that he is frittering away that which is undoubtedly the best things that have or ever will happen to him -- namely, you and your children.
I am speaking as a man who knows this all too well myself.