Breaking Up

I have lung cancer , I have been smoking cigarettes and marijuana with my wife who also has life threatening smoking illness. My wife has had a marijuana addiction for many years. I am too upset to write much now. All I can say is that I feel that I have to leave my wife to save my own life. My oncologist told me yesterday that if I don't quit smoking and get away from constant second hand smoke, my cancer would come back. My wife keeps promising to quit cigarettes but has never made it for even a day. She finally admitted that she doesn't want to quit. I have quit and started more times than I can count from a few weeks to 2 years. As for marijuana she has sworn never to quit. She is in with the group of drug pushers called medical marijuana and believes the BS that they use to sell their dope. She even told me today that smoking marijuana will help cure lung cancer. I have lived for almost 6 years with a cancer that only 10% of patients survive for 5 years. My wife and I argue like children I can't sleep or eat right. We are both miserable I have to leave or die and I have nowhere to go. I have so many problems I don't know which group to join. God gave me a rare gift and so far i have wasted it.