Betterm, just skimmed your many posts during my time mostly in the dark. I just told my WW that she better budget really good with what she has. I will give her not one cent if she needs it. So she will need to survive on her own.
As for your situation, I think that it's your money. Besides spending it on your WW, what do YOU want to do with YOUR money that would make YOU Happy. You could tell her that its your money and take her entire salary to pay off her costs. You could then make sure that there's food in the house, fuel in the car (for work) and then give nothing else. NOTHING AT ALL.
Our WWs want space, they want the freedom to find their independence. So think of them as a teenager in the home, perhaps. If they need money, then they can ask, but you don't have to say yes. TOUGH love, certainly.
Just cos things are going right, doesn't mean that they were always wrong.
