Will/Daetrin, in that case, records it as "Unknown human (?) - 'take no notice' aura; not invisible, but hard to find. Not active at all times (Turns on/off at will?). Apparently attracted to an unknown non-human entity, who appears not to reciprocate. Possibly a fragment of a human, based on overheard conversation. Actively investigating is likely to be highly dangerous, given his observed capabilities."

After which, he turns into a female version of himself, and probably looks at someone.

Karyana, meanwhile, sees both the Hatteress and the Cat Burglar, at the same time. Which, depending on how it works, might mean the love potion takes effect on her for both of them, or it might not.