Over time you developed split personality disorder, which is why you always think you’re killing for good, and can't remember some of the times you have killed people, and when you’re killing people, loses all control. Your split personality is Rhys. And of course you can only see and talk to Rhys since he is just an alter ego.

One day, you were trying to kill somebody stabbing them twice in their neck. Rhys was next to you watching it go down. “Bloody marvelous!” Rhys said with thrill.