False Thinking

[Lifeeee]

My MLC H asked for a legal separation and sent me an email with info on how to proceed. He moved out of the house a month and half ago. I thought during this month that even if our communication was limited and when we meet briefly for technical reasons, we always had a pleasant time.
I never saw this coming.
False Thinking on my part!
I was trying to find small signs of improvement but I guess I was deceiving myself!
I'm totally devasted.
I'm re-reading Divorce Busting but how can I apply any of the suggestions when he's in MLC?
I'm doing whatever possible on my part - even if we don't live to together anymore, when we do see each other, text or email I'm always friendly. Never talk about M. I'm working on my inner self. Some days I feel like I'm a champion then days like these when I felt that maybe maybe there was a slight improvement, I receive another bomb. I'm totally crushed!