I have stage 4 Unknown Primary. My husband has been by my side through this long fight (2017). He has never let me go through a treatment or scan, surgery or anything alone. With that being said I often feel alone. Recently I had 2 new brain tumors treated with radiation and a lymph node below the esophagus. I will have a scan next month to see how the treatment worked. I am getting tired. I worry about him and how he will be if he is alone. I have built a what if file to assist him but I only hope he has a good support when I am gone. To be honest it has been very hard on our relationship. This is something I didn't expect. We are in totally different places. I am not the person I was before the cancer that is for sure. It has been my heaviest burden. I wish you and your wife strength and peace. God Bless. Stay strong.