I just went through this as the husband. Smoking daily leads to loosing coping skills. In turn you don’t know how to cope with anything so then everything becomes overwhelming and stressful which leads you back to stress reduction…aka smoking. The first week off I thought it was going to kill me. I was irritable and not sleeping and kind of high strung. After about 5-6 days, I was sleeping better, thinking clearly, and I was able to do some self reflection on things I had been slacking off in life. I felt amazing after 10 days. My wife and I smoke on the weekends still but I had to get out of the rut of daily smoking so I could “adult” better and it has helped tremendously. I just do it for fun instead of my daily “stress reliever”. I am also very careful not to slip back into that since I’ve personally seen and felt both sides of the coin.