OP here. First of all, I want to thank everyone for their support. I get a lot of face-to-face support, and I'm not sure why the support of a bunch of strangers on the Internet is so meaningful, but it is. So thanks! Second, I want to provide a bit more detail. Not much more, as I don't want to say anything that will be too identifying or potentially useful for her if we ever go to trial: Thanks to the fairness of the system here and some actions she took initially, we have had 50/50 shared parenting time with the kids since almost the beginning. So I've been able to spend a lot of time with my kids, and when they forget they are supposed to hate me, it's been great! Then they remember, and things get very, very hard. And regardless of the challenges of having her here in the complex, this move of hers *will* make things easier on the kids - they'll be able to walk from household to household on transition days instead of getting driven. Much less disruptive. So yes, there is a silver lining. I like all of the suggestions of tracking or even recording all of our interactions. I'll have to check into the legality of actually recording, but writing down what happens and is said as soon afterward as possible is a great idea, and I'm going to add it to my toolkit. I also like the idea of having witnesses around. I don't think a restraining order is a possibility without a specific action on her part. But rest assured - if she does something that warrants it (see what I did there?), I will seek one. Thanks again, everyone!