Came across this article and it does a good job explaining behaviors of someone who has developed alcohol abuse issues. It does a good job at describing how an alcoholic thinks.
Alcoholic Thinking - Understanding the Insanity of Alcoholism: How the Alcoholic Thinks
The other thing I read this morning is when it comes to an alcoholic, they don't actually "love" normally either. Instead it's the high they feel that is important to them. They protect that high just as they do with the high they get from the alcohol or other drugs.
There are so many behaviors that are so similar to that of a narcissist. And there are times where a person is both an alcoholic and a narcissist.