@vananest My husband has a daughter from a previous marriage. She was 5 years old when I got married. A wonderful child actually, but a bit spoiled, as she was brought up by grandmothers mostly. The mother pays child support and is not interested in the child's life at all.
Now the girl is 16 years old, we have a good relationship. As a teenager she heard from her that I am not a mom, that mom is better, that I am nobody and that I should go. I was on night duty at her bedside when she was sick, fed her, clothed her, taught her domestic and feminine moments. And now her cuckoo mom shows up, and her daughter's been replaced. If she calls her, she drops everything and runs away. She ignores me, she ignores school, her dad tries to talk some sense into her. Can't hear a word she's saying.
#life #history #interesting

It sounds like a challenging situation. It's important to remember that teenagers can be going through a lot of emotions and changes. Have you considered family therapy to work through these issues together? Communication and understanding from all sides are key in situations like this.