I don't know enough to say what is realistic or not. I know, for myself, that I couldn't detach if I were seeing my W every day or every other day. I have seen her once in 6 weeks. It is hard enough for me as is.
You need to keep your kids in your life and that will necessitate some contact with her for sure. Just keep it to a minimum and keep the conversation to the logistics and the kids.
Keep focusing on yourself, not in order to fix the MR, but in order to get yourself in a better place for whatever your next relationship is, with her or with someone else. If you keep doing it for her it won't work. Do it for yourself.
W 34 Me 42 Married 7 years together 8 0 kids 1 beloved dog BD 4/6/2018 I moved out 4/7/2018 I moved back in alone 8/05/2018 I file 3/06/2019 D official 5/7/2019