Postby The Snack Thief » Wed Apr 20, 2022 5:37 pm
I don’t know anything about your family history or your family dynamics, but I wouldn’t use the argument of “things staying in the family”: if your SIL is a loving daughter-in-law she IS family. And she might still be family to your MIL even if she ended up splitting from your BIL.
If you, on the other hand, you have reasons to believe she’s been manipulative then that’s another issue; I am also not sure I would want to risk a rift in the family over this, but I understand you being upset.
(If it helps putting things into perspective, I treasure my Grandma’s old mug and photos more than her jewels, and your daughter might find herself in the same situation!)