The only issue in mine and DH relationship has been his sister. The taking him off her is exactly how she has felt, they went on holiday and had dinners together a lot till he dated me at 29, he was a late bloomer. She hit my DS and behaved badly at our daughters funeral. After that I refused to see or speak to her for a few years. I banned her from our house. It almost split DH and I up. He admitted she was horrible eventually, that’s all he had to do, plus though she initially got upset with me her own Mother has admitted now on a few occasions how awful her own child is. She also says she feels like she walks on eggshells around her and can never be herself.
She has never married or had children, I spent many hours listening to her bemoan this fact from age 30 when we first met, we are the same age. We got on well enough for about 15 years. But when she hit mid forties and realised she really wouldn’t be having her own family she took all her misery and pain out on me the woman who had the life she wanted. She is sadly utterly obnoxious like her Father who was a huge bully and a really awful human being. MIL once she knew how I felt opened up a lot, MIL is a bit eccentric. I now realise it’s anxiety caused by this pair of bullies. DH is like his Mother a gentle soul.
We have all suffered at the hands of this woman. I’m speaking to her again. I stood up to her and FIL when he was alive.
I am also from a dysfunctional family but in a different way, they are rough, have relatives that have been in prison. If anyone had behaved like her to them well a couple of my sisters would have just punched her lights out. I have learnt to keep both our families at arms length. My greatest achievement has been raising a DS who had a very happy and secure childhood and DD was a really lovely girl. Both DH and I live many miles from our home towns and families and that was a deliberate choice on our part.
Sorry I vented my spleen quite so much but I’m way down the line of a horrendous SIL. Stand up to her right now, get it all out in the open. The only way to deal with horrific bullies is to be very strong back.