Well, after 6 years BM finally pulled the "you can't have her" card
So things were supposed to go back to 50/50 since SD will be in school full time again soon. And BM just last week had agreed to that. All of a sudden today, she messages me that she is changing the schedule to have SD all the time except DH can have her one weekend a month. And then threw in that she wants to claim her on taxes every year. She says the reason is SD says DH doesn't spend enough time with her and so she wants to stay at BMs.
Now for some background, SD has always been much more attached to BM and when she was younger would cry nearly every night that she wanted to be at BMs, despite the fact that DH catered to and coddled her to the extreme. And when she first started school and was struggling with every other week DH asked BM if either one of them could have her full time during the week to make it easier and BM said no. And then at one point BM was going to move away and didn't want SD to come with. So its a little suspicious that she all of a sudden wants her full time, when it was fine a week ago.
I replied that I can't really agree to that for DH, and she said she's "not asking his permission at this point" and that she's just doing what SD wants. Note - there's been no prior discussion about complaints from SD.
So idk what her deal is, but I'm not sad.