I will try to summarize this without leaving out too much info -
I'm with my fiance four years.
He has four teenage children from his previous marriage.
His ex has tried to cause trouble for us as a couple many times. He used to try to keep the peace but he now stands up to her very firmly. I find her very controlling and unpleasant. For the first couple of years I tried my absolute best to get on with her but now I ignore her.
He has a family member who causes trouble wherever she goes. She is estranged from her family due to this but is very involved with the stepkids. She is very wealthy and manipulative.
My partner and I have one child, a toddler.
At first things were fine. We muddled along together. He loves being a dad, being with his family, is very involved. His ex ended the marriage with him.
The eldest daughter is extremely jealous, aggressive and nasty. That's fine, she's had a lot to deal with. But she is highly manipulative. She would make demands and if they weren't met she would smirk and say "then I guess I'm too busy to come this week." The demands got ever more outlandish (eg - myself and baby were to be told leave the house when she came or dad was to buy her jewellery to the same value as my engagement ring) and when he told her no enough times (but would compromise by offering to meet her elsewhere or buy her something appropriate for her birthday) she stopped coming altogether.
The next daughter repeated the same behaviour and has now vanished.
The third one is now following to a tee. By me a horse or I won't come over anymore.
My partner is devastated. The eldest two will not speak to him at all. When he tries to talk to them at the door they smirk and threaten to report him to the police for emotional abuse then they send a link to the latest iPhone they want. Or they hurl relentless nasty abuse about how pathetic he is. One claims he hit her and I stood there watching. This is entirely untrue.
I often hear phrases that I know came directly from his family member. His ex also lies to them about maintenance and him hiding money (we have shared finances).
I don't know what to do. My heart is broken for him. There is no way to see what is really troubling them or reassure them they haven't been replaced by our child.
And I must admit a part of me wishes he would tell them to do one. I can't bear the abuse they throw at him.
Has anyone experienced anything similar?