Just that really. Was my birthday a month ago and today just realised SIL didn't get me a birthday gift, she sent a card but no gift.
I'm not at all fussed about presents but it's just odd. I sort out her presents and her husbands and she has always bought for DH and me. DH got a present on his birthday and the children, just not me.
She hasn't changed in the way she is towards me, and her and her husband do a lot for DH, me and the kids.
AIBU to be upset by this or should I just think nothing of it?