While Steven was being just as funny as always (if not more!), Lars and Sadie really were the stars of this episode. Lars may have been a sourpuss, but being trapped on a potentially dangerous island for days can tend to be quite a stressful experience.
Is it possible that some day Lars and Sadie will be right for each other? Or will that day be as elusive as the explanation for how Steven was able to be away from the temple so long without the Crystal Gems thinking to check the island they had just visited for him?