J, it's very hard but you must not communicate unless absolutely necessary (e.g. urgent finance stuff, kids, and not much else except extraordinary family emergencies).
I'm in the same boat - I do fine for a week or two then I have a lapse. I don't reach out like I used to now, but I do think about her and wonder/worry. I have to keep telling myself to stop doing that. I cannot control her, I cannot force her to change her mind. You must do the same.
It's awful because you feel you are ignoring her. But that is part of detaching. Keep reading the detachment thread; I try to revisit it every week or so.
You have to keep up GAL and PMA.
Me - 36, W - 32 No kids T - 8 yr, M - 3 yr Discovery - 14 May 2019 S - 25 May 2019 & D bomb - 29 July 2019 D & House sale final - Feb 2020