Thank you for posting your story, especially at this time of sorrow.
I am still with my AH. I fear his story will end the same way, unless his horrible cough from smoking gets him first. He won't quit either, won't seek help, won't visit a doctor.
I can't do much, other than put healthy meals in front of him, which he hardly eats. It is hard to see someone go through this and realize you can't do anything.
It sounds like you eased your husband's passing and he left knowing love.
My heart goes out to. Take care of yourself.