OK, rethinking, maybe I will take pics of the kids in their halloween costumes and send them out to all the grandparents- and their great-grandmother- a nice gesture for all, not emotionally charged. Me being a good DIL (and daughter) without trying too hard.
I do want to be nicer. For the sake of me being a nice person. Truly. Just such a strong urge to reach out to her and I don't know why.