I know you already sent it, but I just want to also say the recent response looks good. It's validating and not defensive, and shows, I think, that you care about her feelings and appreciate where she is and what she's doing.
When the WAW is finally ready to open up, the worst thing we can do is make it uncomfortable or she won't want to do it again. I feel like your response shows understanding on your part--hopefully she'll see that and stay willing to open up in the future (even if not immediately, she's surely going up and down and all around and she might close off again tomorrow, but this should keep her willing to be open again at some point).
Me: 43 W: 41 Together 2009, Married 2011 Sons 10 and 6, Daughter 5 Bomb 2/21/21. W moved out 10/2021