Kyrie, I too was trapped in a high conflict communication style with someone who is NEVER wrong. I stopped reacting. Not 100%, I still every 6-8 weeks have a blow up, but I am getting used to STFU. It is so hard and feels abusive sometimes, to just listen to attacks against me that are just so untrue. But I do notice that the longer I go without reacting the less he rages.
Still not in a good place, but much calmer. I know your H doesn't "let" you take the quiet way out. There has to be a way to break this cycle.