The party line will have you believe that addiction stays with you forever, but I have serious doubts about whether it's true, in part because it was not true for me. I am a skeptic at heart, though, and never buy the party line about anything. The institutions that have grown up around addiction have a somewhat vested interest in keeping those who have had addictions in treatment of some kind. In the US, the AA/NA influence is powerful, and the disease model which has been adopted by most insist that this "disease" will keep you "sick" and at risk for the rest of your life.
Will you have powerful cravings when you're getting off opiates, including suboxone? Sure. Yes, you will. Will they fade with time? Yes, they will, especially if you put other stress reducing and problem-solving/coping behaviors in place. Will they go away altogether? As a person with a serious alcohol addiction at one time, I can say I don't have any cravings at all now.
Very stressful situations may bring up brief urges to use, although that has not been the case for me. As far as I'm concerned, I'm no longer addicted. That does not, however, mean that I can go back to even moderate use of my drug of choice, nor do I risk using other CNS depressants of any kind without professional supervision. I have used morphine in the hospital and Vicodin at home after a serious staph infection. Addiction returns so quickly--and really with the same tolerance as before--that using alcohol or anything else of the same class is very, very risky and not at all recommended.
You won't know how you feel until you do a long, slow taper from suboxone and observe how the cravings diminish. Keep a journal so you can see your progress; it will help you see how you are changing. Moderate use followed by three years of addiction is not as bad as it sounds. Most people are addicted for far, far longer.
A more positive approach to addiction can be found at secular alternatives to AA/NA, and there are several worldwide to choose from.
-Eye, Registered Addiction Specialist