That look was exactly what I would expect if a player character casually explained to an NPC how he walked into a dungeon full of flesh rending monsters and fought them for hours just to get stronger.
Oh god, the incoming robbery.
Oh god, the smug face.
Oh god, they are sleeping together again.
Oh god, the coincidence.
Oh god...
HOW DOES ONE PRONOUNCE GYOZA?
G-YO-ZA OR GYO-ZA?
AHHHHH
(Edit: Derp English)