He just doesn't get it, does he? Co-operative co-parenting is what you do when the two of you are in a partnership together, and you work out between you how to manage your time, and all the family tasks that need to be done. Or, if you sadly come to a mutual decision that the relationship is over, but that you'll work together to make things as stable as possible for your dc.
But if you unilaterally decide to piss off, then want 50/50 (not that it's happened yet) mainly to avoid paying CM, if you can't manage your personal finances in a way that provides your dc with what they need (bedding), if you're unavailable when you son wants to speak to you on the phone, and if you're abusive to your ex-wife - then NO you don't get that kind of co-operation. Suck it up TWAT, it's what you asked for.
You are doing great OP. I'm glad to hear you've got the flexible arrangement you need at work - they must appreciate and value you. And I imagine having that structure back in your life will help.
When my ex and I split there were times when the devastation hit me out of no-where. I was grieving for the life and the family life I'd imagined we'd have. I was was grieving for my dc not having the stability I'd wanted for them. I was grieving for the empty hole left in my life - where was my adult companion, the one I'd laughed with, shared worries with, been tender with? It's to be expected. But those moments became less frequent. Sometimes where I was feeling sadness I'd watch a teary film, or a sad documentary, and bawl my eyes out in a way that wasn't quite as directed at my own situation - very cathartic when I needed it.