"If you not having enough sex with your spouse drove him to porn then you owe it to him to stick by him and help him with his addiction."
No one should stay in an abusive relationship under ANY circumstances. It does NOT sound like she withheld from this man, he has been addicted to porn for many years. She is the one starving for affection and gets nothing from this man at all.
The SO will probably blame her for everything, that is typical abuser behavior. Most of the time the addicted personalities cannot or will not admit that the problems in the relationship are driven by their horrible behaviors.
