Bit of background.
DC is 10yo. Their best friend can blow hot and cold to the point where on occasion has been very spiteful and upset DC.
I’m friends with the mum and on a recent occasion her child was incredibly nasty to my DC. The teacher was aware this had gone on but hadn’t addressed it in school. I addressed it with her over text saying they’d had a fall out and I wasn’t sure what had happened.
She basically replied saying her DC hadn’t done anything wrong and wouldn’t acknowledge the upset.
How do you deal with this situation?