Stop calling your W and initiating R talks. You are not going to talk her into respecting you and wanting to save the MR. You are not going to talk her into anything right now.
It's all business now and the business is kids' logistics, which can be handled by text. There is no need to be talking to her right now. This is my opinion. I think it's what is best for you right now as there is no way to initiate R talks if you are not talking.
Marching orders to your L - get me 50% custody starting tomorrow. Now. Get it done now. I want 50% custody right now. If you are entitled to it, get it. Don't delay.
Shore up your boundaries and then enforce them. There are many ways to enforce boundaries, I have used them all. Use the methods that work best for you. As you gain strength you will be able to deploy a variety of boundary enforcing techniques effortlessly. Your W will treat you how you permit her to treat you.
Keep GAL, keep improving, stay positive! Be strong and positive! Things will get better, much better.
Oh, and one more thing - stop calling your W and initiating R talks.