So she's getting him great gear which will only cost her 5 gold but is actually worth 10 times more. Good thing that won't be the cost added to his debt, right? Right?
With that said, he's already heavily in debt to her, and getting such incredible equipment may not increase his debt monetarily, but he will owe her for her knowledge instead, which is pretty invaluable.
I wonder if there will come a time when he sticks to her without the crutch of a debt.