Sister is basically selling herself

I really do not know what to do. My middle sister is turning 53 years old and puts on a show that she is high class with impeccable taste. She lives in a wealthy neighborhood and has a six-digit salary. She has two children in their teenage years. Sometime ago I visited her and when her boyfriend came over she was mean to her kids. I took her in another room and confronted her. First, she says she needs something for herself then says,

Hi, do you wanna finish this post? I wanna know what she says! :op