It might well appear “uncanny” to the uninitiated but to me, 17 years after bomb drop and after thousands of hours reading and studying marriage and MLC, SIL doing this was 100% predictable.
She is cut from the same cloth as my W, was raised by the same adults as W, only my W had 4 extra years of her father at home than SIL did. From the age of 3 onwards, SIL saw very little of her dad.
W and I were 31 at bomb drop. The triggers at a relatively young age for MLC were living in a foreign country where we knew no one, a miscarriage, and me, the man she married, being a selfish, verbally abusive jerk. I had become my father.
SIL, on the other hand, married a well-raised, stable, conscientious and morally upright man who, during the course of their marriage, had built up a multi-million dollar business. I’ve always gotten on very well with him and I’ll sincerely miss him. When W and I paid off all our debt years ago he was the only one who heartily congratulated us.
So with SIL it took longer to trigger her but it was always going to happen and it wouldn’t have mattered whom she married. She’s told W she “just wants to focus on her art”. Not at all interested in her marriage. I hope to [insert Higher Power] that BIL has a solid pre-nup in place. Giving a wad of cash to SIL would be like giving a loaded gun to a drunk, figuratively and literally.
My SIL said to me a couple of years ago that other apes raise their children far better than my MIL raised W, SIL and SIL2. And frankly I agree with her.