He didn't say no, and fair enough is basically a yes. That, or he doesn't remember either and the bit is mutual, which would be the best possible outcome here.

"You're in a graveyard and you do research." Meeting Palamedes kind of threw a wrench in her mental sorting of House archetypes, but she's giving it a go anyway. There's this long pause, and then she adds, like it's something she just turned over in the back of her mind. "And you're name's boring. So, yeah. Fifth."