I completely reject the idea that any yid who uses shmutz (fantasy) and hz"l once in a while is "an addict". As far as I am concerned, that is ridiculous. The badness of the aveira does not convert in into an addiction - at least per the 1st of the 12 steps that I know of.
An addict is unable to stop - his track record eventually teaches him this -hopefully before creating too much wreckage and destroying too many other people's lives. He (or she) is also suffering a great deal at the hands of the compulsion. Life is often looking acceptable on the outside, but truly nuts on the inside. And they are the only ones who can possibly decide whether or not they are addicts.
I have never met any guy who admitted he was an addict who got better by getting married. Maybe there are some, but I rather believe that this is often what happens to them:
Crazy over lust, they get married and drive their wives batty with lust demands for decades. This remains behind closed door. No one finds out about it...until they finally give up either because their wives are tired of the disgusting idea of being treated as an 'receptacle' for their husbands to act out all their fantasies - or the husband himself soon discovers that his poor, innocent wife cannot compete with the fantasy-woman (or women) burned into his heart.
The real success stories are of the men who are either addicts and in recovery, or were never addicts in the first place and grew up a bit after getting married. They learned what real life is like and let go of the childish fantasies - unlike myself. I did not do that. And here I am, totally unable to win the battle and yet sober today for the past 14 years, by His Chessed.