Hi Denise,
I'm so sorry that your husband has cancer! My husband also had stage 4 cancer but he had it for 14 years before he died last July. My husband also drank coffee but he would drink water. That's very important for anyone; healthy or not. However, what my husband didn't do is to get anymore of the Chemotherapy or Keytruda treatments after he reacted badly to them. He almost died from Keytruda. But thanks to a good primary care doctor who got my husband to the right specialist, a person who handles pancreatitis which is a known side effect of Keytruda, my husband survived. The cancer doctor was unhappy with him not agreeing to anymore treatment. (Keytruda infusions cost $25,000 each! My husband had just been approved for 10 more infusions.)

Your husband is probably frightened about the future. Anyone would be in his situation. Plus he wants his life to be the way it always was. My husband didn't want to give up smoking but he managed to. He always missed his cigarettes.

Perhaps you and your husband should pray together and let God handle the situation. After all, it is God who eventually decides when and if you will die. It is stressful and hard being a caretaker but just show your husband a lot of love and kindness. My husband and I told each other how much we loved each other everyday; to the last day of his life. I'm so glad we did! It made things easier and less stressful. Between that and praying we managed to get through the bad times. My husband is up in Heaven now with God and Jesus and he's out of pain. That helps me to get through each day since his death.

I wish you the best. I will say a prayer for the both of you.
PML