Thanks for your support, FireSprite. That's a good way of putting it, it does seem like she has been wanting to get a rise out of me. The best indicator of future behavior is past behavior, so I suppose I should just brace myself for whatever ridiculousness she is going to tell me regarding the conversation I want to have with my ex and her about their new overnight visits.
But what should I do about my boundaries? I don't want to hear about her alcohol problems or what she thinks about her so-called "wonderful" marriage to my XABF. And, I don't want to give her the chance to laugh in my face again, knowing that she won't apologize for her threats. If she does any of that, should I just end the conversation or just re-direct the focus to parenting guidelines only?