Normally, we recommend complete abstinence for drugs and alcohol, but that's not a realistic option for food or sex. With this, she just listened. First, an addiction is not the same as a chemical dependency or habit. I explained how everyone has habits and chemical dependencies, and many of these are healthy. An addiction is a chemical dependency or a habit that is unwanted by the individual.
Addiction is purely subjective.
Withdrawal is an added 'surprise' that some but not all addicted people experience. Meanwhile, drinking is a legal and legitimate pursuit of pleasure. Many heavy drinkers enjoy exploring that fine line which distinguishes responsible drinking from irresponsible drinking. For some, though, the side-effects, costs, and risks involved are much greater than the benefits. They start to have doubts and regrets, and thus the mental argument.