Teenager Who Try To Sabotage Blended Families: please help me

» confused02 - please help me

I met a wonderful guy knowing full well that he has 2 kids. the daughter concerns me. she is 19 and with long blond hair and taller then her father. but psycho. she has a problem with me in her fathers life. her father secretly talks to her on the phone and meets with her. (I don't know why) she has stollen from me and has called me every name in the book. she tells her friends that are oddly enough some of the same people my younger sister knows that she will make sure that her dad and I will not stay together. When she comes to visit, he will not come near me and treats me really bad. When we are alone ( him and me) he tells me that I am his soul mate and the next thing we are fighting. I can't stand the head games from him. we have been together for a year and nothing has changed. She has ruined everything and I just need to know how to get through this.

-- posted by confused02