H is calling in half an hour to talk about "things." Trying to stay calm and business-like and relieve the the shakey throw-upy feeling I have. Any recommendations for calming exercises or breathing?

I had googled grieving an unwanted divorce and one of the websites recommended asking the spouse for a letter or email explaining why so you can have closure. I would like to actually know, but I don't think I should ask him for a letter, right?

Me:30 H:29, no kids
T:12, M:4 (when D was final)
12/13: "Don't think I want to be M anymore"
6/14: Separated (I move)
1/15: H filed for D
5/15: D final