I think there are some interesting themes here in terms of relational dynamics:
He knows I'm going to give them to him, that's who I am.
I tend to avoid conflict at all costs
He felt like I was always trying to parent him so if I tell him "No," it's just as bad.
I don't want to be his parent, I wanted him to step up and take responsibility and he seldom did.
Without reading back, can I ask if you have read codependent no more? It popped into my head when I was reading your post above and it's a book you may find helpful. I'm reading it at the moment.....
Hope this helps and take care xx
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus