Oh, I can so relate, my h did the same, although I wasn't as good as you, I just stacked it in a big cupboard. He had no idea how much stuff was there and didn't even bring boxes to pack it. He was astounded, I just wondered how he could not know?! He too was very thankful to me for organising it and for all the effort it had taken me. It was like a bit of realisation hit.
They are in total la la land!
I was a little green about assimilating the stuff with ow's. But then on the plus side it will always be a reminder of you that won't go away.
You did really well to just leave him to it. Are you going to go out next time or stay around?
