So DS is a few months old and the first grand baby on both sides. We see each set of grandparents every other week or once a week. If either visit is mentioned in general conversation to the other set of grandparents the answers always have a response with a jealous tone in them...almost teenager like. If in honest it's mainly my parents although PIL do the same from time to time and it's really starting to irritate me! AIBU to find this annoying or should this be expected?? Is grandparent rivalry a thing?