This is outing - I don't really care though.
I allowed myself to be groomed and abused by my sister's husband when I was about 14 (the grooming had been going on for about 18mth/2yrs before). I kept it a secret until the night my mother died and me and my sister had been sitting with her for the past week (nursing team told us death was imminent, but actually took 7 days). The conversation came about because my sister's father (mum's first marriage, I was born during her second) abused my sister horribly from primary school age and I had a gnawing worry that my mother was one of these forgiving/stick fingers in ears and sing la-la type women. It turns out mum had no idea what was happening to my sister, as she was the one who left the family home and my sister kept her secret well (as is often the case I think). Mum was devastated about my sister.
Mum also knew what happened to me - I confessed to her about what I did a few years after it happened and my sister had since got divorced. Her response was "well that explains why you can't hide your hatred of him then".
But the most surreal part was during the part of my childhood where I was getting/allowing the abuse, and also the years running up to the grooming. The man was the type to engage in the casual misogyny favoured during the 70s-80s. He was known to be a bit of a 'dirty old man' - usually said with kind of a laugh. I remember when the grooming was in the early stages and considered to be just 'joking around' I was about 12 or 13 and there was a party which ran late and got pretty boozy all round (not me though). I remember he pinned me against the wall In the living room and tried to give me a love-bite on the neck. The comments from my mum/sister (can't remember which, possibly both) went: "oh ffs leave her alone, you know she's sensitive and doesn't like your sense of humour.... Oh great, she's bloody well crying now" and then said to me "if you didn't rise to the bait and react he'd get bored and leave you alone " and that was about it.
Anyway what I'm trying to say is that things go on in plain sight that are dismissed and minimised as jokes/unfortunate misunderstandings that get swept under the carpet, probably because the reality is too horrible.
Once I'd given my sister my confession she said she wasn't surprised, didn't blame me but 'felt very hurt' about it. She saw her ex husband a day or two later and confronted him (I wish she hadn't though, it wasn't her secret to tell). He said that I was instigator, he was poor fool suckered in etc etc. She also told her children (they are all adults in early 20s-30s) and I really wish she hadn't done that. Life has gone on for all of them, one of my nephews is in business with his dad. The man's face pops up on my Facebook occasionally because there's been a family celebration and my niece or nephews are posting about 'lovely meal for dad's birthday' or whatever.
I haven't called my sister for months, although I keep meaning to invite her and her kids over but then I just don't contact. She hasn't contacted me either. The last time she made contact was on my ds1's birthday this year, she responded to my happy birthday post (facebook again!) to say 'tell him I'll bring his present over later" but she never did. She's gone very quiet on us since my niece produced her first grandchild.
Anyway, that's a long and rambling post, but I'm trying to say that love for and loyalty to a person can often be kind of compartmentalised in the minds of people close to an abuser. Often people who love the abuser find it easier to freeze the victim out, because they don't see them as a victim but as a colluder.