My fiancé and his ex wife seem to be in denial about some unusual behaviors of their daughter. I have 3 children of my own so I am not new to raising kids. I am also a nurse, so I am sensitive to age related unexpected behaviors and signs of mental disorders. I have tried very hard for the last two years to gently point out behaviors that have become down right embarrassing in groups of people His daughter is 14 and things are really escalating as she gets older. She is lying more and more often, creating untrue scenarios where she is the victim, to her BM.