just take a look at raws - even if there's like some kind of drama between 20-50 chapters - it still don't feels like drama, manga continuous at the same tone as it was, so I don't think I there will be some heartbreaking crap, may a little bit misunderstanding (as I understand, she moves out bcs they try to act like a normal couple, and shut their fitishes behind a closed door, but it was to hard) etc. At least I didn't see any global drama at the chapters 49-51 (that you can read for free, previous is closed).