She's told my brother that I shouldn't ever talk about how abusive our mother was. Our mother was a violent alcoholic who died last year. I had been NC for many years, my brother stayed in minimal contact, doing practical things such as arranging emergency hospital admissions and managing her finances. They visited her a couple of times a year.
I liked my SiL and thought we got on well so feel upset that is I'm no longer invited over and she's stopped joining us when we meet up. My brother says it's been helpful us talking about our mother and that I've been a good support to him as she was dying (a slow, horrible death from the effects of her alcoholism).
I'd like to sort this out with my SiL but don't know how to approach it. Or do I just need to leave it?