[Spotted. And he knows once she's caught someone she isn't liable to give up easily. Of course he enjoys her company. She... is also a very beautiful young woman, and intelligent. They're all things he respects in her.
. . . He just hasn't found a way, yet, to stay calm over her particular quirk...
Turning around, he at least smiles pleasantly. ]
Miss Euphemia, it is a pleasure as always to see you.