I am currently engaged to a man that I love very deeply the problem is he has a 15 year old daughter that is a nightmare.  My 2 children ages 15 and 18 cannot stand the drama and lies from his daughter also.  When I was in the hospital just 3 months ago I almost died.  Hei daughter refused to let him come visit me in the hospital because she felt him being home with her was more important.  His daughter constantly calls her mother crying that her father is neglecting her even when he is gone for 5 minutes.  She refuses to participate in anything she is not the center of attenion in, including other peoples birthdays.  She refuses to leave the house other than for school and then calls her mother crying when we go someplace with out her(she is asked to go with us every time).  She lies and accused my daughter twice of physically assaulting her and practicing satanism in my home.  She lies and accuses my son of bullying her when she starts not my son ( I watched this happen in person at a school event).  She is a drama queen and has very few people in her life.  Her father grounded her from her mobile phone and her mother gave her a new phone.  She never takes responsibility for her own actions, everything is someone elses fault and she cannot help it.  She is disgustingly foul in her hygine( she steals and wears her fathers and stepfathers underwear, shaves her legs at the kithchen tabke using a soup bowl.  She refuses to allow her father or me to even speak to each other without being present and trying to redirect her fathers attention to herself.  She follows us and moves physically inbetween us at every possible chance.  She threw a tempertantrun when her father put a lock on his bedroon door saying "it was unfair to her" (She opened the door and walked in several times without knocking in the middle of the night while we were occupied intimately).  She tried to force the locked door open in the middle of the night.. She rlies constantly.  I have repeatedly attempted to befriend her but instead she has refused to socialize unless I follow her rule and play her games.  She refuses to come over my house because she is not the center of attention.She constantly lies and does things for attention even getting in trouble with the law.  She pouts everytime I point out one of her many lies.  She pouts if I am talking to someone and I do not allow her to jump in the conversation over petty attempts to be the center of attention.  She cries over being left home alone even for an hour while we go food shopping (which she refuses to come along) and calls anyone she can get to answer the phone crying.  She threatens her father and cries that she is the victim when anything does not involve her being the venter of attention.  This is causing problems with my fiance because my children and I refuse to play these games and now she is accusing us of victimizing her.  Our methods are telling her she is lying when we know what she says is a lie and ignoring her when she tries to start drama.  I told my fiance if he wants me to play her petty games I will not stay with him.  Her mother contradicts anything her father says no matter what.  I cannot and will not play this childs game.  My fiancce says he does not want to lose me over her lies and drama.  I told him then he will have to accept me detaching and not playing these games.  I am so conflicted if we can make it or what to do because of his daughter and her attempts to get rid of me and my children.