I would just say a simple thank you when appropriate is fine but I wouldn't go out of my way to send one, if that makes sense. Like, if he mentions it, just say thank you. But I wouldn't break NC to send the thank you.
You're mind reading. And as we all know, that does us no good because we really have no clue whats going on in their brains. Hell, look at ours. If anyone looked at my thoughts throughout the day and tried to make sense of them, they'd be spinning in circles.
Just keep doing what youre doing. Give it some more time. Things will eventually change, one way or the other and you can face that challenge when it comes.
M:26 H:32 T:8yrs ILYBNILWY/ "I'm not happy": 2/6/16 D-Day-discovered PA/EA: 2/10/16 Separated: 2/14/16 He's living with OW I moved to different state: 06/16 Currently: Trying to move forward