I have namechanged. I have known this friend for a couple of years and been friends for about a year. We have children of similar ages. Every now and again, out of the blue she will make a snidey comment about my DC ie her DS has been hanging about with my DS too much and that is why her DS is being cheeky. They don't even see much of each other and don't play together at school!
Now before you think I am being precious, I fully accept that my DC are not angels and will often talk about how they are driving me mad. AIBU and what would you do? BTW I have never been in this situation before and generally thought that people did not say negative things about other people's DC to their faces at least!