Sounds like a bad situation here. I sympathize with your daughter, because I had a stepmom from he11 too and it was not fun. She did not want us around and particularly one year on Easter, went to visit my dad (who I never ever saw) and stepmom came home (not knowing we'd be there) and started slamming doors, throwing a fit, wanted us to leave and refused to drive us home since my father did not have a car at the time. My father walked us home to another town, miles and miles away. This woman was also the homewrecker that destroyed our parents marriage and was ten years younger than my father. She hated us and was having her son call my dad, dad. I didn't get to see my father much at all and in fact, didn't have a relationship with him til I was 18 and he divorced her.
You seem like a great mom who really cares about what's best for your daughter. It is good that you have open communication with the father about what's best for her. It sounds like stepmom wants to interfere with his relationship with his daughter and that's why she's making your daughter out to be the problem, because she doesn't want her around or to be a priority to him over her kids. She treats your daughter differently and it isn't right.
I think that going out with her dad every so often to do things away from the stepmom is a great idea if he would be willing to do that. I wish I could've done things with my father when I was younger, but it wasn't up to me. He had his own life.
You seem like a great mom who really cares about what's best for your daughter. It is good that you have open communication with the father about what's best for her. It sounds like stepmom wants to interfere with his relationship with his daughter and that's why she's making your daughter out to be the problem, because she doesn't want her around or to be a priority to him over her kids. She treats your daughter differently and it isn't right.
I think that going out with her dad every so often to do things away from the stepmom is a great idea if he would be willing to do that. I wish I could've done things with my father when I was younger, but it wasn't up to me. He had his own life.