DD, 10, had been best friends for several years with a girl in her class (let's call her Amy). Lots of sleepovers, playdates, trips out with each other and went to a gymnastics class together.
Last year Amy started to become closer to another girl in the class (Alyssa) and DD told me she felt pushed out, Amy and the other girl started to spend a lot of time together, doing things that she and my DD would have done together in the past. I explained to DD that these things happen as kids get older but that she should nurture other friendships, which she did do to an extent. Amy then became a bit envious and would continually badger my DD for an invite over to our house if she found out DD had another friend visting. It got to the stage that Amy's mum would suddenly message or call out the blue and start heavily hinting for her DD to be allowed over too.
Alyssa then joined the gymnastics class and Amy started to ignore DD in the class, DD was upset but formed new friendships within the class so all good. This was 6 months ago, Amy and DD now no longer really interact and DD is doing well with new friends but I had a message out the blue from Amy's mum suddenly inviting DD over. It turns out Amy and Alyssa had a fall out at school and aren't talking.
DD says she doesn't want to have the same friendship that she did with Amy previously and when I've said this to Amy's mum (in a roundabout way) she made it clear she wasn't happy with me and said I should speak to DD about being friends again. But why should I? DD was miserable for a time about this friendship situation and she's now happy. If she does want to be friends Fair enough but AIBU to not actively encourage it?