"Well... I mean... the prophecy came true." Sort of. Harry was half convinced that it only came true because Voldemort believed in it. But the other one, during third year... At the time Harry thought she was talking about Sirius when he didn't really know who Sirius was, but looking back on it, he realised she was referring to Pettigrew getting free. "I just think maybe she doesn't See as much as she claims to."