I can relate to the spending. Could it be OCD? That's part of my AW's problem. Lately, I've been digging in closets and finding weird stuff... like sacks full of men's cologne (which I don't use) and dozens of bottles of body wash, shampoo, etc. She's wasted thousands of dollars on diet supplements that just sit on the shelf and go out of date.
Sounds like you may be dealing with something similar. I can relate to your anger and frustration.