Believing you and your life are either
literally or metaphorically the center of a metaphysical narrative in which you are the protagonist and that your life obstacles or people you disagree with or dislike are forces of
evil. Most often seen in people who have consumed large amounts of entertainment such as books, movies, or video games which have a concrete "
good or bad" for most of their lives.
"My sister in law keeps referencing
Harry Potter online when
politics are brought up. I think she may have a protagonist complex."
"Quit being so self righteous. You
sound like you have a protagonist complex."