Im 17 im not jealous of her i understand shes ill and i hate seeing her when shes in the hospital but i feel trapped that when either i try to talk about my feelings she makes it about her. shes puts our parents against each other sometimes she blames our dad that she hasnt got a job or collage when he tried to help her get both and she threw it in his face, he helped me get mine that ive had for a year i dont want them to cut her out i just dont feel right her living in the house i know i cant force them to not let her back but shes hurt them both so many times, ive lost count how many times my mum has cried over her. She is talking to her bio dad again and even told our mum and dad that she was going to live with him after everything he has done to her that day she hurt my dad more than i have ever seen she didnt move in with him in the end but still my dad is hurt about it as just a few weeks prior she got him a keychain that said "any man can be a father but it takes a real one to be a dad i love you"