So, I’m honestly think that the whole Belle runs into an old aquantiance (Grumpy being the old aquantiance) and it possibly being her undoing and the dwarves looking for fairy dust in the mines and Belle being trapped in the mine car are all connected.
I do think that the parallel exsists between Belle and Mahil and the tavern exsists, obviously but I really think Smee is just going to see Rumple giving Belle the necklace (or whatever he gives her) and see the connection between Rumbelle and she going to be a casualty in the Hook and Rumple war.