So my boyfriend, stepdaughter, and i have moved into a new house, finally. Ever since then, my sd has treated me like i don't even exist, except when she wants something. She is constantly interupting when i want to talk to my bf, and always stepping in when him and i try to have some adult conversations or even try to make dinner together. She acts so innocent and sweet when her dad is home, but as soon as we are alone she acts like a total b*^%h. When i say something to her dad, he says he will talk to her, but it doesn't seem to do any good. I feel like a third wheel in my own home because what she wants she gets, because heaven forbid she gets upset. I am the one who is totally pissed off, but am getting sick of the bullshit behaviour.