I wonder if any of the "couples" actually start to date in the future.
Kotone and Shizuku are already dating.
Haruka and Yuu skipped dating
Yuzu and Kaede are married.
Really?! When was this...
Oh umm, well this is awkward but you see I was kinda just joking but I can explain how I came up with my conclusions for ya.
Kotone/Shizuku: they are the only pairing that actually understands what they are doing is considered being a couple.
Haruka/Yuu: I say they skipped dating because they make out and boaderline, if not actually, have sex with one another. But because they started their relationship On third base, they are confused like starting a book or movie in the middle.
Yuzu/Kaede: pure fan wank, I just like to assume these two are the old married couple who don't have sex anymore but are still affectionate. Though I do find them as the opposite just as great.