I took it day by day. Get through 1 day without showing him emotions and pursuing relationshio talk. Then make it 2. Then 3. (Like you would if you were giving up sugar) post yoir days and accomplishments here. Whenbyou get pissed at him post here or write in a journal. Thats what i did and it helped.
I mean by that... in lets say you never made him breakfast in bed, and that was his big complaint about you. If you suddenly start doing that now, maybe to show him that you want to try and are willing to compromise to make him happy...hes not gonna take it that way. Hes gonna twist it to say "she could have done that all along but never bothered till now. See that just prooves what a bad wife she was to me. Her only incentive is me leaving. Too little too late.
You cant win with them at this point. They are gone and looking to justify being gone by villifying you.
So just work in your best interest. At least you will have your self respect.
I think being friendly is in your best interest and in the kids as well. Just dont take it as a sign that he wants to have a relationship talk. I was always told to work on friendship and keep things light and positive by the db coach. To act as if.