This is really really tricky.
It could be that she is more jealous of her step dad. It could be that she’s just not that fond of him.
It could be that you provide a healthier happier home. It could be that you are easier to manipulate and indulge her more.
It could be that there is a more serious issue.
Very tricky! As on the one hand, you want to take a kids worries seriously. You want, naturally, to know what’s going on. On the other, if she’s been whipped into a hysterical state herself, then this is a really damaging course for her if it’s not to do with a more serious issue.
I’ve always told my kids that their first port of call if they were cross with a parent / step parent, is with that person. Even from a young age. That running to the other parent who is in a different house is not a good idea. My kids often complained to me about the other parents.
That is separate to ‘the talks’ about privacy, body privacy, not keeping secrets, feeling funny about someone etc. Or if they ever felt frightened by shouting or aggression. I’ve taught them to hopefully always tell me and or other responsible adults about that stuff.