Your post reminded me of something that has resonated with me many times in the past (and that I often need to remind myself):
You and he do not live in the same realities/planets.
He lives in a world that makes 100% sense to him (even if he's lying to himself) and has no basis in logic in our world here.
So, any attempt to make sense of this or understand it is only likely to frustrate you, for you cannot know the rules of his reality when you weren't born and raised (and are still living) there.