What did Jason say to Mia that made Mia cut off the deal with the loan sharks?

Jason tells Mia that his father is bluffing, that he does not have another prospective buyer for the motel, and that his father will sell the motel for $300,000. Mia stares at Jason when he betrays his father: “His brown eyes blazed with courage. / But it was his kindness that blew me away” (282).