One other random thing - I like to periodically throw in some humor to throw my W off. Thanks to R2C for advocating this.
She was telling me about her D'd friend coming to visit this weekend. This friend had a nutty H who would insist she send pictures wherever she was, because he was convinced she was cheating. Actually maybe she was, I have no idea, she denied it but what do I know? I remember W's friend telling me this one day at our house several years ago, and I thought "Yeah right," and at that moment my phone started blowing up because her H was texting me to make sure she was at her house. I said, "Yes". And then he asked me to take a picture of her as further proof (as if I was in on the lie).
So last night:
W: "D'd friend is coming to visit with her daughter this weekend. I just wanted you to know that." UC: "OK. Please take a picture of you two together at the house and text me."