RE the divorce, how about "it's not up to me. You're the one who's pursuing it and I'm not standing in your way, but I'm not filing for you either."
And you don't ever have to talk to him or text back. There's no gun to your head. Your cell phone is for your convenience, not the phone's. Keep the legal matters in legal hands. Don't argue them as I'm sure his legal "info" is second hand.
Good luck
M: 57 H: 60 M: 35 yrs S30,D28,D19 H off to Alaska 2006 Recon 7/07- 8/08 *2016* X = "ALASKA 2.0" GROUND HOG DAY I File D 10/16 OW DIV 2/26/2018 X marries OW 5/2016