Anger and resentment provide the fuel the WAS needs to exit the MR. Who knows why? Maybe it helps deal with the guilt if you think the other person is delusional. I don't know, and it doesn't matter. It hurts like h3ll to go through it.
"Believe none of what they say and half of what they do." His feelings are alien to you. If his behavior/words/actions ever became consistent, you would then have a window into his feelings. Until then, you don't.
I know it's hard to fight those urges to reason. So sorry you are going through this.
