How do I tell her to stop calling or do I just totally ignore her.
You mentioned children, but you weren't clear on if they're your W's or yours from a previous R. If your W is the mom then you really shouldn't just cut her off or ignore her, but you could ask her to keep contact limited to the kids if that's what you want.
It sounds like you're saying you're done with her because she's left 3 times, how long have you been done? If less than a couple of months, give yourself time to make sure that's really what you want. I thought I was done at one point, but after about a month I decided I wasn't done after all.
