Recap: in January BM messaged us that she was going to have SD fulltime and we have no say. Immediately followed by "I'm sure you've already arranged to claim her on taxes for this year, but I want to every year after this." 

Today she messaged to just check if we were claiming her this year before she filed. Hahaha, did she really think we would let her just to be nice after all of this?

So SD is emailing BM again constantly from our house. She's done that the 2 weekends she's been here since BM flipped out and said she can only come 1 weekend a month. Last month when she stayed at the inlaws there wasn't any emailing, so I know it's just when she's at our house.

All they're discussing is what she had to eat and when. The first message was from SD stating she ate lunch 3 hours ago and what it was so obviously BM had told her to report to her about it. Wtf? Why is she nitpicking about what she's eating here and not even asking about anything else?

So after BM messaged us unnecessarily earlier this week to confirm we'd be doing the already planned usual schedule and dropping SD off in the morning for school Monday - she drops SD off without her backpack or any other school things. *eyeroll*

I'm sure that was an accident. 

I read a post in a parenting group today from a stepmom whose SD is an only child, but her and DH have 3 other kids. She was going on and on about all the sacrifices she made to BM to keep the peace because she believed tbey were all on the same team. Gave up her religion, had weekly phone calls with BM to discuss how she wanted things to be for SD. Things we all know are way too much. Then she writes that she feels like an idiot because she's realized when she's asked BM for a little in return, she won't budge. And no they AREN'T all on the same team.