Relatively long post for my first...so I apologize and thank anyone that sticks around.
So I've always gotten on with my OHs sisters. They're both older than him and more my age than his. Four years ago we all got pregnant at the same time, and now our girls have started nursery. His older sisters DD goes to a different school, but ours and the middle sisters went to school together.
They're both very strong willed, independent children. Which is where the problems began. His sister is a single parent, with an older child, who works full time. Hats off to her. So her DD has always been with childminders from being 6mo. This particular childminder did pick ups and drop offs at out school. Great.
For the first week or so in September nursery was going well, our DDs were in the same group and seemed to enjoy it, but then the cracks started. The SiL began telling me she didn't want them in group together because she didn't want them dependent on each other (I agreed). This then moved on to her saying she wanted to change childminders (because her DD struggled to walk to school and back) and she might end up switching schools (again I was supportive if it was best for them).
Things progressed further when SiL told me her daughter was having issues and she "wasn't right in the head" because she was seemingly struggling with anxiety. As a side note I should also mention her DD struggled with certain things that most children her age found easy. (For example my daughter and I point out all the numbers on our walk home on registration plates and houses but her DD didn't recognise any. On the times I've looked after her I've tried to help)
Skip another week and her DD is having meltdowns every morning at nursery drop off. Her childminder is leaving her without comfort due to other children, and she's taking her mood out on my DD when she tries to comfort her. Eventually my DD started kicking off and refusing to come to nursery. And the two of them began arguing constantly.
I spoke to teachers and my SiL about it and suggested we split the girls up in group. The teachers agreed it was a good idea. My SiL FLIPPED!
Over the course of the next few weeks she implied it was my fault her DD was "struggling with understanding" because she was moved group (even though I offered to move my DD despite the SiL hating their group teacher). She's accused me of wanting her child "out of the way" and made out the issues are fabricated by my DD (despite witnessing these things myself)
I tried to explain that I didn't want our DDs falling out permanently, that I wanted to nip this in the bud before it got worse, that our DDs getting along was the most important thing to me.
Since then she's ignored me completely. And my children. She's actively avoided us and feigned ignorance if we've spoke to her. She's talked crap about me to her sister. And today I've found out she's took her DD out of school, switched childminders and moved her elsewhere...
Am I wrong for being angry and feeling humiliated? She's made me out to be a horrible aunty to her child by upending her life by splitting up our DDs and her child moving group...but then she's changed her childminder and moved her school.
I just don't know what to do, and right now I want to stop her from seeing my children at all again! She's infuriated me!