Have you thought perhaps that it doesn't bother him so much as to want a divorce? Perhaps he's a good Catholic.
I'm a Catholic, and Catholics are allowed to separate from a spouse who has refused, over a long period of time, to desist from moral turpitude.
We are not allowed to remarry.
If the chief is a Catholic, and he has children and his wife has refused over a long period of time to desist from this behavior, he has an obligation to leave with the children for their sake.