I think a lot of us men here are like your H. I know I'm guilty as well, I have taken so much advantage, not put her first, meet her needs, and now I'm hoping that when she turned the switch she hasn't left for good.
But from reading your posts, you don't need to put up with this. Maybe it is time to try to communicate your message in another way. I know these aren't DB'ing techniques, but maybe he has a close male friend that sees things your way, especially someone he looks up to, that maybe could shake his foundation a little. Just seems like blind arrogance on his part.
All I can think of is find a diffrent medium to speak through, phone, email, friend, the dog. Something. Maybe involving people isn't so great, but I'm lost on how to resolve this.
I hope things start going better for you, keep the PMA up and it will.