I am going to be so disappointed if this all boils down to MM and Regina having feelings for the same boy. If all of this is because REGINA wanted some boy that only had eyes for SNOW.
REGINA has feeling for some commoner / the stable boy, but he only has eyes for SNOW. Maybe the boy gets banished / killed and that is why REGINA HATES SNOW….
Actually, I don't think that will be the case since we're going to see a mini-Snow White in this episode. Bailee Madison was cast as a young Snow White, the Stable Boy — well, he's like in his twenties or something. So, I don't think the writers are going that route.