It'd be funny as hell if Boa was tearing up because her sisters failed to beat Luffy, and she's just so disappointed in them!

Given her personality that isn't too improbable, but I'm hoping it's not the case because I want the plot to progress! I'm thinking that they will teach Luffy how to control/use Haki properly, and maybe Margaret might tag along as a new crewmate by the time he's done on this island.