Would you rather I tell them to stay and work it out, even if the other spouse isn't willing to put any effort into trying? A one-sided marriage WILL fail if only ONE spouse is willing to stick it out, but the other has already said goodbye.. God will not help someone who refuses His help. God won't force this husband into stopping his behavior. This husband seems content to continue living how he's living, doesn't seem to want to change, or work things out OR want help from ANYONE including God. Until or unless he wants to change, this marriage will only get worse. Yes, God hates divorce, BUT he ALWAYS uses it to bring something better to these people.
I'm NOT going to advise her to stay and get ignored and treated like dirt.