Cigarettes stimulate the nervous system. I always feel more 'jittery' after smoking, but WHILE I'm smoking, I feel relief. I don't know if it's the physical habit of it that I crave or what. They do make me shaky though and a lot more anxious. Trying to quit. As a side note, I always go somewhere private and quiet to smoke. That could have a lot to do with the feeling of relief. That quiet time. Let's face it though, that rush of nicotine to the brain is a wonderful feeling. People aren't smoking because it makes them feel terrible. I want to quit cold turkey but I'm not sure I can. I thought about chewing gum as an alternative, it's just so 'cow in a field' though. I chew with my mouth closed, but still. I'll figure it out. If she can't quit altogether, then maybe ask her to cut down? Cigarettes. ****. I rue the day I ever started. If I had a time machine I'd go back and slap myself so hard that the plaque would come off my teeth. : / P.S: You also have needs in this relationship, and honesty is important. You're going to burn out if you carry on like this, and then you'll be no good to either man nor beast. Remember to take care of YOURSELF too. I really hope it works out my friend.