The type of subtext where they fall on top of each other on a boat and stare in each others eyes for a minute straight while blushing and romantic sunset lighting covers them.
Just Manaria Friends things!
Um, BugDevil . . . given the existence of crossover ships, I don't think that's a good idea. Anime is not kind to the "ui" name ending. Lockjaw everywhere, and that's ignoring the dehydration from that many orgasms . . .
Plus, Cuuko and Ryuko is just a bizarre fucking ship.
I do not agree that Souma was out of place, I was actually glad that a guy was also in the picture. It's not like you have yuri just because you don't have guys around.
... I'm going to assume that you all are deliberately missing the obvious (namely, that Antenna-chan saw the site her GF was looking at) just to add to the comedy.