Thanks Matt. I did not ask about bf but she insisted on telling. In fact her calls have been ramping up iAd the divorce seems to be winding down. Sigh, yet a new challenge to deal with.
What I learned to do - and it took me a long time to get good at it - was use e-mail only - almost no phone or face-to-face.
When she called, if it was about the kids, I would listen but wouldn't respond - "Um, let me think about it." or "I don't know - I get back to you." Then I would respond by e-mail.
If she went into some inappropriate area I learned to just hang up.
Same thing if I see her somewhere, like at a school function. I don't chat with her. I don't exactly ignore her - if she says "Hi" I say "Hi" but that's about it. If she chooses that time to tell me something about the kids I listen and say "OK" but if she goes into some other area - what's happening at her work for example - I don't engage - wait for a pause and excuse myself to go to the bathroom.
To her, I am now the most boring person imaginable.