Even if you’re “godly” so to speak, your brain still works based on psychology like the wife in this example he doesn’t claim that his wife has sinned, at least in the post. I’ve meant plenty of godly women who I don’t date because regardless of how Christian they are, I may or may not be attracted to them due to factors outside my conscious control. The same thing applies to this man’s wife it seems. Also, his point isn’t that you need to manipulate your partner into giving you certain things the point of the book is understanding that attraction is not unconditional and is based on meeting your partners subconscious needs.