So I know that Rokudo is not wanting to take advantage of the curse that has been placed upon him, but that does not mean he can't react in a considerate way when a woman straight up tells him that she loves him. I know the scene is supposed to be played for laughs, but I felt a little bad for Ranna that he completely deflected her confession with the 'My tummy is cold' response. Ranna is pretty simple, but he shouldn't treat her feelings so lightly. I hope this doesn't cast doubt (probably won't) and confuse her. Minami is not a "bad" girl anymore it seems, so her feelings for Rokudo must be genuine.