Why do some gymnastics moms create drama and blame other gymnasts for their daughters insecurities?

In the sport of gymnastics there are going to be times where the girls are going to not get along. For whatever reason it happens. I was a gymnast years ago and it happened then. But my mother always stayed out of it and let my coaches handle it. This is exactly what I am doing. It's really petty stuff like so and so won't include me etc etc. I have always taught my daughter to just do what's she's told and if a gymnast just irritates u to just be the bigger person and go about ur business. There is this mom who feels she has to meet with whomever her daughter is upset about/feelings being hurt. I have decided to not speak with this mom because there is nothing my daughter or I have done..the coaches have told me my daughter is fine, just petty gym drama. Why is this mom wanting to talk to me and basically want to blame my daughter and other gymnast when it's clear her daughter is not telling the whole story and adding more to the story than is there??? So frustrated...