as a rule myself and DH dont talk about our finances with other family members.we just see it as our buisness.
anyway a few weeks ago we got our DD kitted out for her communion.SIL rang whilst we were shopping saying she was at our house.the shopping centre is only 10 mins from our home so we said why not pop up and we'll have lunch.
she didnt want to but asked how much we had spent on communion stuff and DH wouldnt tell her.she got really angry that he wouldnt and in a huff hung up.
we have since rang and texted but she never answers or replies.she is very about money and how broke she is etc.
she also got angry when DH wouldnt use our credit card to pay her car tax a few months ago because it was maxed.