You have not said what H wanted to buy, if it is a major purchase, or smaller than say his previous major purchases. But I think you are already seeing the forest through the trees based on your last post.
H's spending money is a reminder of past purchases, you know and understand why those happened, and it could seem to you like a backslide. I went through this sort of thing myself last month, because I was looking at his financial responsibility improving for a while, to then hear something really stupid. But as I thought about what he bought, I realized it was nothing major (although something just for him) and then I had to look at me and WHY was I so bothered by it. How did it make me feel. Similar to you I'm afraid but then I said but it was something so small. I decided to just sit and observe for a while to see if it continued or if it was a one time thing. I am beginning to think it was a one time thing, so maybe more of a "normal" sort of purchase.
I don't know if this helps but maybe...
"Acceptance doesn't mean resignation. It means understanding that something is what it is and there's got to be a way through it."--Michael J. Fox
