Wife has left and filed for divorce

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My weekend with the boys went great. I picked them up from my MIL last Friday and had a very positive conversation. We hugged, laughed, joked, and she told me two interesting things about my W:

1) When I had last spoken with my MIL about two weeks ago, I told her one of my regrets was not telling my W how beautiful she looked at a wedding we went to about five weeks ago. Apparently, my MIL told my W that and my wife responded in a sad way and said, "Why didn't he tell me that back then?"

2) My older son had to have a tooth extracted last week. My MIL said my W was very concerned about making sure I knew everything that was going on, that I was kept in the loop, etc.

I walked away from that conversation feeling positive and thinking that it was interesting for my W to respond sadly to my regret and that she was proactively trying to keep me in the loop about our son. I felt that this didn't seem like a woman who was full of contempt for me.