Need advice for a WW who left Part 2

[dwh15]

Thanks everyone for the feedback. As an update, I never replied after that last TM from WW. As the night rolls on, we get to 6:30pm, and still no word about taking the kids. She normally has them by 7pm and has communicated something to someone. I figured she was busy throwing a tantrum, so decided I was taking the kids swimming at the Y. So we left at 6:30pm and stayed around an hour. Kids had a great time.

When I check my phone, I see WW has tried calling twice, and left a TM saying "I'm trying to figure out what's going on with the kids. None of them are answering their phone. And you're not answering."

Well, of course we weren't answering. We were in the pool! I figured with no update from her by 6:30pm I wasn't going to feel guilty doing something fun. I get sick of putting all my plans on hold waiting to see if she MIGHT be having them over. So anyway, I TM back a reply:

Me: "Sorry, took the kids swimming at the Y. Just leaving. Be home in a few."

WW: "U can bring them over"
WW: "I've been trying to reach someone for the last two hours"
(This isn't true. I had no TM until 6:45pm. Same with all my kids, so it was actually 1 hour)

Me: "No idea about the kids. I don't have a text until 6:45"

WW: "Never mind just call it a night"
WW: "Thanks for the communication though"
WW: "Just would have been nice had somebody kept me in the loop"

That last part cracks me up. She's the queen of last-minute cancellations. Barely ever any notice on her plans. But she's mad that I didn't bother to communicate. So I'm sure she's saying all kinds of choice words about me right now. And I don't even care. I'm sick of caving into her temper tantrums. When she wants to discuss things like an adult, then we can talk. The way she's been acting lately, I'm honestly not even sure I want her back. I hope this doesn't last forever. But I'm proud of myself for finally growing a backbone. She dug her own hole.