Here's the thing...
You just said...
We will see how this plays out.
Um, why? Again, you are giving your power away and then...wait for it...complaining that you're giving your power away. It's a cycle that needs broken. He does childish stuff, you act like a mom to the rescue. He relents, says you're right. Until the next time, and you're right to where you started, him acting childish and you do your thing and, and and.
So. And it's a big SO. How to break the cycle.
Truthfully, it's an individual journey, each person has to find out what works for them and what doesn't. For him, this works. For you, it does not. If you don't want to act like a mom to your husband, then don't. Just DON'T. You not only have that right and responsibility to him, you owe it to YOU. And I think you forget that.
Really, you're just pushing off whatever is what's to come. You're still in limbo, waiting, hoping, looking for him to be what you need. What you're not actually seeing, is...he doesn't need you. You need him.
Yes, before you get mad and tell me I'm full of ****, you really need to hear it. He is going to be just fine without you. He can function and do his thing and play and buy whatever he wants and still be be ok.
You, however, have issues. Issues of control, of being alone, of self doubt and mostly, just not wanting to lose. Loss is a part of Life and you
are not wanting to accept that. Not everybody wins all the time. So you may think you've lost the Marriage Lottery. It happens, for a whole variety of reasons.
Some reasons may be your fault, others not. Take stock of those reasons, figure out what "peace" means for you and make a calculated and deliberate step to achieve what exactly what you want.
He needs to change. So do you. The question is, do you change together or separately?