Flygirl,
I'm so very sorry. My second husband was in the same place (hospital, liver and kidneys shut down, pneumonia, delirium, coma). Somehow he pulled through, but after a few months he went right back to drinking. I couldn't help him and I left. I'm amazed he is still alive.
Love isn't enough to help someone like our husbands. It just isn't. He isn't suffering any longer.
I hope you will be able to work through your grief and loss. This is a horrible disease and it takes far too many good people.
Please stick with Al-Anon and maybe check out some grief counseling. Just remember, there is nothing you could have done to save him.
Hugs,