[Riiiiiiiiight. He can tell you're trying to get rid of him - Percy looks between the two for a moment, and there's definitely a considering expression on his face, before he shakes his head a little and starts turning away.]

Try not to stumble into any of the torches again, or whatever happened. I'll just go... away. Over there. Other side of the pavilion. For the rest of the night. Have fun.

[And indeed he'll start to make his way back to Annabeth. But he'll be keeping an eye on the two of you...]