A bit of context: exh and I separated in 2013. He left. Eldest was 8 youngest 6. I suspected affair. He denies. He now lives with woman I suspected affair and her children. I have a new partner too.
The issue is my eldest daughter who is now 12. She doesn't want to go to their house. She can't stay over night in week due to school yet her younger sister does, different schools. This has caused a distancing in their relationship. Eldest does not get along with his new partner or the two girls who live there very well. She is not a confident or social child. Youngest is socialable and laps up the older girls attention. This isolates my daughter even more.
I have tried to raise this with exh before and be her 'voice' and he just can't see the issue. He blames her. He blames me. He never sees that there is something he can do. Things have now come to a head as her school are now involved and she has told her teacher. They have suggested she sit with her dad and tell him how she feels. I know this needs to happen. She doesn't want to do this without me.
I need to tell him that we need to talk. I know I will get the blame as will she. I need to reduce the amount of time my youngest goes their on her own to try and help mend the sister relationship. Whilst not letting her miss out on seeing her dad and enjoying the life there.
I have no one really to talk to who has any experience of anything like this. I feel like an emotional wreck, having a teenager is hard enough. I don't know who to turn to or what to do. Please if anyone has any advice I'd be grateful