I fit the description of the WAW, but HE left .

[Queen_of_Swords]

Positive things:
He signed the card and bought flowers with my sons for my birthday the Sunday before. (This was 5 days after he dropped the email bomb.)
I had a brief chat when he called to say goodnight to the kids. I was chirpy and upbeat and asked nicely about his work trip and asked him how things were going. That went well ( I thought) I was enthused about the new the new thigns he was talking about. He seemed to appreciate my interest.
He texted me Friday morning to wish me a happy belated birthday.
He called last night to say goodnight to the kids, he asked (iirc) how my day went, I told him about our youngest's dental adventure of the day.

I'm trying not to read too much into this beyond basic courtesy and general interest. I am of the mindset right now, that I have to take him at his word and he means what he says. He wants a divorce. Breaks my heart, but I can't do anything about it.