smoking again, it felt so real

I was in a dark club, smoking cigarette after cigarette. I was sitting across from an unidentified person who was also chain-smoking. I smoked defiantly, carelessly, without even a tinge of guilt. Why was I smoking so many cigarettes in this dream?? I haven't smoked in five months..do I harbor a subconscious desire to smoke? I don't feel it day to day.