I see that several people are saying there's a triangle when such thing doesn't exist. I like Yuu, but I won't deny that she's stupid. More than a love triangle, it is an unfortunate chain of unrequited loves. Suzu likes Yuu, but Yuu likes Atori, but Atori likes Suzu, it's a vicious circle, and Rura is also involved. I think most people have followed the trope that Suzu should be with Yuu, but should it really be that way? At this point, I believe that Suzu does not deserve the indiferent treatment that Yuu inflicts upon her. Suzu suffers from her indifference and her purely friendly treatment. That makes it all the more significant, knowing that the girl Yuu worshiped so much is already in love with the girl she now unconsciously despises. Which brings me to my next point. There is genuine chemistry between Suzu and Atori despite the former's apparent rejection of the latter. A rejection that, incidentally, seems to gradually fade away as the chapters progress, in a barely perceptible way. I think at this point, it's pretty clear that Atori is in love with Suzu. And Suzu gradually seems less apathetic towards her. Suzu is the one who can see her true nature and doesn't treat her like a goddess, as Yuu insists on doing. That's why Atori fell in love with Suzu, who hasn't lifted a finger to get closer to her, and not with Yuu, who has worked his fingers to the bone trying to win her over without success.
I'm sure Suzu's fans want to see her happy, not suffer. And well, if Atori is the one who brings her that happiness, then it's not so bad for her to stay with her. In any case, the author seems to be positioning Rura to fit with Yuu as a partner in case Atori and Suzu's relationship materializes. Both Yuu and Rura are stupid, but cute and endearing, which gives them a great chemistry.