Hopeful spouse, Unfortunately it is always fatal, with the exception of a liver transplant. Once the liver is involved there isn't much that can be done. Chemo can prolong the duration of the disease, but will not cure it.
Yes, he may experience extreme pain during the process, but there are many medications that can subdue it. I am so sorry to hear about his diagnoisis, It's not news anyone wants to hear, much less live through. Enjoy what time you have remaining and make the most of everyday left.
Life does not go on forever, we are all going to succumb to one disease or another, it's just a matter of when and what. It's the time you spend together that counts, not the number of days. AND, he could live much longer then doctors predict, medicine is not an exact science, and no one knows for sure just how long each of us has. So Take it day by day, and the best of luck to both of you. You both have my deepest sympathy and my best wishes.