[ Is Robby's Senses going off here? With how Mister LaRusso is acting....!!!

No, since he has no reason to think there's anything odd going on. Instead, he continues off from the man: ] He offered to help with the new people showing up here when we asked everyone about the diner. [ He's looking at Tsuruno as he speaks. ] And he told me he met Mister LaRusso when he was still having trouble with his throat.

[ He does glance at the sensei then, but he's relatively casual about the information. All that might be shocking about it is how much Robby apparently knows about Mister LaRusso and Midnight's friendship..... ]