@Jason Todd, I strongly doubt that you are a psychopath.
In my case, it seemed to be accompanied by dissociative symptoms. Looking back at it, it was, for me, an unhealthy coping tool. I'm not saying that daydreaming and imagining oneself in a different situation is an unhealthy coping tool. Just when it becomes maladaptive and affects life.

As I referenced above, I got out of the maladaptive daydreaming period. I believe my therapist, at the time, was helpful with that. That doesn't mean that I no longer daydream, but now it's "normal daydreaming". I don't daydream for multiple hours per day anymore. It now doesn't affect my ability to interact with people properly in life, or accomplish the tasks I need to do. I am now more satisfied in my own skin, and with my own reality.