Very close to giving up

[roist]

You have done coaching so I will let their advice be your way forward.

You want to be friendly but not friends. Know the difference and be clear about it. At this stage that could be voiced, but should be done without anger or resentment.It is just a fact. If either of ye decides to split, (yes IMO it is OK that W is aware she isn't only one that decides that) then you will coparent with her but you are not interested in being friends. You will need to live that through your actions and interactions.

W is not working on R so MC is just a tool to beat you with. IMO there is no use in continuing to go together at this stage.

Did you state any consequence about contact with OM? You cannot make her stop. That is controlling (or trying to control) HER. Continuing contact is not acceptable to you, so what do YOU DO?

By the way don't believe her BS. She may believe it now. That does not make it true. But it is your current reality. Accept it but don't dwell there. Your situation is not hopeless but it will be a long hard path if you choose to walk it.

Best wishes