My stepdaughter is 20 and shows many characteristics of a mini wife. To top it off she has a boyfriend with whom she's been with for 6 months and she treats him badly. Calls him an ass-?!;:, He recently bought her a beautiful necklace which had a soulmate poem in the gift box. She opens it and goes eeuw eeuw .. in front of everyone including her boyfriend ... She said it's so soppy and she doesn't like soppy. I felt so embarrassed for him as did everyone else there. She is abusive verbally to her boyfriend and with incessant demands. I can be sitting talking to my husband and she will butt into our conversation. I wish she would move out. SD has started working for her dad at his new company of which she is the director .. so this has given her an even further sense of superiority. She doesn't respect boundaries at home ... Plays her music loudly and contantly barging into our room. I put in place a rule that if our door is closed the kids can either phone or message us ... If our door is open they can knock and enter... First day after this rule was made she broke it ... If hubby and I are sleeping she will will walk into our room start talking. She lies and manipulates and micro manages her father. The other children in our family dynamic (mine) as stepdaughter an only child are made to feel "less than" while she gets put on a pedestal because she demands that by her manipulative behaviour. She decided to go off the contraceptive injection even tho she had an abortion the year before last ... Her dad gave her money to get the injection and she hasn't ... I am so over this behaviour. I have spoken to my husband in a calm manner he goes quiet and says very little ... He has no control over her as when he does try to discipline her and guide her she will turn on the water works or throw a hissy fit.