You'll find articles at this website about codependency or being codependent as well as becoming codependent-no-more via personal development and spiritual growth.
These terms were coined by treatment facilities in the late 1970's to describe the partners of alcoholics. But the concept of codependency is relevant to other people who've been impacted by other forms of family dysfunction. I hope you find these articles helpful. That said, while I don't know what you are facing in your life that brought you to this site, certainly, you might want to check out www.NarcissismAddictionsAbuse.com as well. You could find an article or two that proves enlightening if you suspect you have a partner displaying an unhealthy level of narcissism.