Good conflict source. Most romance needs something keeping people apart so that you can prolong will-they-won't-they for 40 chapters. For a long time gay relationships could provide that, but as they become more and more common, readers want additional spice.
Got a feeling Rio disappeared for a couple days to treat Kohana mean to keep her keen. ( And hope that Kohana will start to treat Rio mean give her some rough love...)will be interesting to see how this goes , wether Rio will succeed in making Kohana her S or Kohanas love will change Rio from her eMie ways..