Oh, no. Oh, no no, he's being so nice about this, too...

A look of apprehension comes over her face. "I'd hate not to pay you the full price..." But. She doesn't have a whole lot of money just yet, because she hasn't been here for all that long. She purses her lips as she thinks. "Would it be okay if I give you the rest later? Or, pay the other half in a favor of some kind?"

Because. She does really want it. And he's so excited that she's interested, she can't turn around and change her mind now.