There is a difference between having your addiction under control and no longer being an addict.
This begs the question of whether your friend was actually an addict, or simply over indulging.
I think part of the rehabilitation process is to admit that you are an addict and have a problem. Though people can learn to deal with it and live life sober, I don't think you ever really get over the addiction.
I don't know firsthand but my sister is an alcoholic. She is 7 years sober and now has completely turned her life around. She still calls herself an alcoholic. I don't think it ever goes away, but one can sure change their actions.
“Today a young man on acid realized that all matter is merely energy condensed to a slow vibration, that we are all one consciousness experiencing itself subjectively, there is no such thing as death, life is only a dream, and we are the imagination of ourselves.” – Bill Hicks
Nah Retard, Lost is right. I thought about it immediately after posting. Just because he has his urges under control doesn't mean he's not an addict. He's drinking soda at parties, because he's an addict.
I wrote a four word letter.