He's being really nasty to you, OP, and THOROUGHLY enjoying punishing you by seeing you tying yourself in knots to please him.
The only way to sort this - properly sort it, so it gets resolved, not 'improves slightly' or whatever, is to get angry.
I'm not surprised at all that the issues were things like parenting decisions, him feeling left out, unappreciated, hard done by. - basically, you weren't dancing attendance and deferring to the Giant Golden CockWaver? Oh dear dear, can't have that. Let's pull a few of those pegs out and crush you down a bit, and take away some of that annoying self esteem and security in your relationship while we're at it.
Now he's got you totally on the back foot, terrified he'll walk out so doing what he wants - which is focusing your energies on HIM. Thinking about HIM. Worrying HE is not happy. Instead of getting on with organising life, the kids, the home and treating him like another adult who should be pulling his weight alongside you in that and doesn't need genuflecting to. Presumably that's what you were doing before and he didn't like it one bit.
You have to start seeing the wood for the trees here. You can't go on like this (and maybe you shouldn't want to, with such a nasty little tantrumming meanie prick, but that's another discussion). The only way to work this out is to fight right back and say NO. You don't get to treat me like this - I am not interested in being dangled on a string and if you enjoy doing that, then I don't want you full stop.
If you still have issues that you feel are not resolved and that is why you are unwilling to genuinely move forward and treat me as a partner and with love and affection - then we go to counselling.
If you feel the above is true but you can't see those issues being resolved, or you don't want to resolve those issues - we start planning our split. Now. Because I will NOT live with being treated like this.
If the truth of it is that you are actually a nasty little princeling whose whole MO has been to get me to feel like this in order to have me dancing attendance on you, and actually how things are now is qutie enjoyable for you - then carry right on, I will then instigate a split all on my own because that makes you a nasty piece of work.
Stop sleeping with him. 'Either you must be forcing yourself to have sex with someone you don't feel affection for, which is bad for you, or you're enjoying having sex with someone you're choosing to withhold affection from, which is sadistic, and extremely bad for me.'
So, you call his bluff. He either leaves, agrees to counselling, or admits he's being a cruel twat. But this stops RIGHT NOW.