I say stepchild in the absence of a suitable alternative - been dating DP for 8 months and all is going well (our kids met about 2 months ago) but I'm starting to think his eldest DD (who is 7) doesn't like me much.
I've always been careful to make sure DP gets time alone with his kids, I don't discipline them (that's his job) and generally try to stay in the background unless they want me. This seems to have worked well with his youngest (4) who seems pretty fond of me and my own DC who is the same age. But I've noticed his eldest doesn't react the same way and this behaviour seems to be deteriorating.
She can be quite rude, sometimes hitting me as she passes, arguing back even if I'm talking to someone else, deliberating doing something if I ask her not to, walking into me, walking between me and something I'm doing. Low level stuff that I think might be deliberate but at the same time could just be caused by something else (age? Jealousy?). Probably the bigger issue is that her Dad doesn't 'see' these things usually (he pulls her up on them if he does) so discussing it with him is difficult. He has a different relationship with his eldest than his youngest and dotes on elder one more.
As far as I know this isn't a reaction from anything her Mum might have said (I havnt met her yet but she sounds amicable enough) so I don't know what's causing it or what to do. I'm trying not to break the dynamic of what's working for us as a couple but equally I'm finding her behaviour a bit wearing when I see her (about once a fortnight).
Any advice please?