Obviously a person is not going to break their habit if people they used to party with are still using around you. My dad tried to quit drinking to save his life, because he had to be clean to be on a heart donor list. He had to quit drinking and smoking. My stepmom never quit, and would continue in the same room as him. He eventually died anyway, but that is not the point. How do you stay away from people that influence you if it's your own spouse or other people you live with?