Update: Still married, still doing well 3 years after the "near divorce experience" that we went through as described above in this thread. (I did not post around Christmas 2022 and Christmas 2023 as I had planned because I couldn't remember my login details!)

Now that I'm back on the boards I'll think about whether there's any useful insights I can share. Or I'd be happy to answer any questions if doing so can help others. But for now, just wanted to post an update that we are still together and doing well.