Oh, he'll always remember who his Mistress is! It's not like he leaves her side all that often - except to annoy/join up with the pirates for a spell or something. :p
Aria would definitely confuse Wep if she was in a tree and barking like she's another jackal like him. Haha. Cue tilting of the head and everything.
I'm unsure with Belle, unless it's just a random run-in. Hm!