Personally, I wouldn't take the kids either. I would keep the money and use the time to go somewhere with the kids and invite them to open up a bit about it. Ask if they have any questions. They don't need to speak to someone else, it's you that will make them feel secure.
If invited she will either avoid it, as the kids might hear the real truth first hand. Or she will come and spew in front of the kids. Neither would be good IMHO.
Surfer.
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