He had been confused by the sound, really, the dragon was easy enough to figure out, sort of, because he could smell the flame and the melting snow.
Though he went from puzzled-but-interested to startled-and-wary as soon as she said his name, backing up a half step, wings cocking again, ready to bolt if he didn't get the right response, "I didn't tell you my name."
Really, the only reason he hadn't bolted yet was because Angel could read minds, so he figured whoever she was, maybe she could too.