What is amazing about addictions is that everyone suffers from some form of them. The same processes that are responsible for addiction to alcohol and narcotics are also responsible for addiction to ideas, work, relationships, power, moods, fantasies and all kinds of things. In Christian terms, and addiction is a false idol.
If you are a believer and have emotional stress, you will either have an outer expression or and inner explosion (which normally converts to depression) and with the passing of time all is forgiven and forgotten. However, the bitter person will do neither of these.