Thanks all. I'm sitting on an email response for another two days while I think about how to reply. Mentioning L does seem like escalation, but I feel like I have no choice. I like the line: "Write down how to split our assets, and I'll discuss with a L."
Compared to where I was two weeks ago, I certainly feel indifferent. Minimal engagement and no escalations, it's respectful. It's actually quite nice, the way it should be.
To SteveLW's question, I can wait it out for a while. Two weeks ago, no I couldn't. But now, yes. We agreed to sell the house in alignment with kids end of school term. It needs to be 1 year after BD anyhow for a formal divorce.