Advice needed on how to handle this situation.
I have a casual friend / acquaintance I met through our DC. Both our DC have been friends since primary school and are now in secondary. They have shared the same group of friends during this time and often do things as a group.
Her DC has begun to be quite mean to mine and is a bit of a ring leader amongst their friendship group resulting in my DC often getting picked on. Things like name calling, derogatory remarks, racial slurs passed off as jokes, putting down my DC's hobbies and interests, etc. DC likely has Asperger's as well so does not make friends easily and struggles to understand what's appropriate and what's not.
This behaviour bothers my DC, but still claims these children as friends. My DC will sometimes respond back to the name calling and mean remarks with similar in order to deflect. (I know they shouldn't and we tell DC to stop).
When my DC and friends DC are alone together things appear to be ok. The other child is polite and quiet. So the mean behaviour comes out when they're together as a group. It seems like this other child is trying to impress their friends by joking around and picking on my DC.
This has been going on for months now and doesn't seem to be getting any better. I'm not good with confrontation, especially when it's with someone I'm friends with or respect.
I'd like to address this issue with her but I don't know the best way to go about it. I'm also ND (ADHD & Asperger's) so interacting without second guessing myself or worrying I'm going to offend is an issue. I'm also worried that even though this mum may address the issue with her DC that this may then make its way down the chain back to my DC and their group of friends, causing my DC to be further bullied or completely alienated.
What should I do?