Scaramouche created you as a puppet to train you into a living weapon. The more he trained the more he saw you as a failed prototype. He expected you to be an emotionless puppet, but you became hesitant once he ordered you to hurt someone. He realized you have emotions like a normal human being. You have empathy, making you unable to hurt others. instead of destroying his failed creation, Scaramouche kept you for himself and slowly develops feelings for you the longer he spends time with you.