I'm going to go to the house on Tuesday because it's the only day I can guarantee that I can collect all my belongings without my daughters being present and my W will be on her own so it's a good time to talk.
I'm going to speak to my W first re D as I want it to be as amicable as possible so it doesn't cloud and future relationship between us and our daughters. I also think that if I state my intention to start divorce proceedings and give her time to think on it and she still wants to go through with it then it gives me some closure that I need.
If I'm honest I'm not 100% convinced it's what I want but as you say it will help me let go of the constant analysing of everything she says and does.
Over the past 9 weeks I've been in some very dark places and considered doing things to myself that do not bare thinking about. I feel like I need to take some control of my life back and for me this is the only way I can see me achieving that.