G.D.
I'm with fanged bunny. Just try to speak positively about school. If she brings up concerns about the bossy girl-then you have an opportunity to have a diolouge. Let yhe teachers handle the rest. My Kidnergartener is in school for the first time this year and has had to flip her card a few times for talking, or because another kid told her to do something. I don't make a big issue out of it-but let her talk it out. She actually distanced herself from tge girl she thought would be her bestie at tge beginning of the year-because the girl was getting into trouble a lot. I didn't tell her to do it-but when she to,d me she did I told her that sounded like the right decision. They recently started hanging out again, and the other girl seems to behave better. We read a lot of books about kindness and treating others respectfully.
My 10 year old had a very bossy bestie last year and I didn't care for it. This year they didn't end up in the same class-and I think my ten year old is starting to see the other girls true colors.