I think dropping the rope might work because it appears to be the one thing you haven't truly tried yet.
And because it's almost always effective.
Humans, after you strip away all of our mumbo-jumbo and fancy phrases, utilize a very primitive push-pull relationship dynamic. I'm willing to bet anything that your husband still feels your "pull."
He may or may not respond if you drop the rope; there are no guarantees. But it will NOT work, if you DON'T.
