Sanosuke and Megumi

They are a couple but well like any other couple ( i.e. Mamoru and Usagi ), they always bicker! Although they really like each other they show it with arguing each other with flowery words. Megumi had a crush on Kenshin but in the end realized that he already love someone and that was not her. In the Anime Sanosuke also had a love interest but well it was a sad ending. Sayo ( Lady Magdela ) died. Well furthermore in the manga they didn't really ended up together in fact they seperated. Megumi left for Aizu while Sano left to travel all over the world he was last seen in Mongolia. So although they didn't ended up I think we should still consider them as a couple.