Hello, Bea, and welcome to the forum. You will find a lot of information about end-stage liver disease (ESLD) in the folder at the top of our main page entitled Hepatitis Resources. It addresses your questions.
Read some of the posts on here dealing with alcoholism and liver disease. Also, let your husband know that he is going to die sooner than later if he continues drinking. In addition, as has been mentioned, he will not be a candidate for transplant unless he has six months of documented sobriety in AA or an alcohol treatment program.
There are certain medications that could help him, such as diuretics and Lactulose. Your husband is undoubtedly experiencing elevated ammonia levels, which go to the brain and cause confusion, agitation, nastiness, etc. Lactulose rids the body of ammonia through BMs. Of course, he would have to agree to go to a doctor to get these prescription meds.
If he is not going to stop drinking and won't seek medical care, the only thing you can do is take care of yourself. Basically, you can expect the symptoms he is exhibiting to get worse until he goes into complete liver failure and dies.
Also check out the Caregivers Sharing thread.
Hugs,
Connie