Everyone is talking about how Suna ended up single, but he made his feelings pretty clear. I've just finished the anime and I believe Suna could have a number of reasons why he wants to be single.

For starters he admitted that he hasn't ever met anyone he's meshed with, he's also said that he's enjoying his life right now as girls are a bit too much for him to deal with, so to me it looks like Suna is just Demisexual and is waiting for the right person who's personality grips him enough to date them. He also told Takeo that it takes a long time for people to fall in love, even though we see Takeo and Rinko almost fall straight away.

I believe that Suna likes the girl who gave him anonymous chocolates throughout the years, but it's going to take him time to know her better before he can reciprocate her feelings. After all, we didn't exactly see him turn her down like he did with all the other girls, and he did enjoy his time with her. I believe he loves Takeo as a brother, because he's a good person and he genuinely enjoys his time with him. I could be wrong and maybe Suna does have some kind of mixed feelings about him, but I don't really believe it myself.

I think Suna is happy just being Suna, and he's just taking life one day at a time, and I think we should just enjoy the story for what it was instead of what you think it should have been.

^_^ Have a nice day!

I agree. I wish he would’ve ended up with someone just to see what kind of person he clicks with, also because I really like his character and was curious about how he would’ve been in a relationship. I personally don’t think he’s gay and I don’t want to assume his sexuality or anything like that, the only thing we know is that he’s interested in girls (since he said it himself). To me it seems obvious that he doesn’t love Takeo nor has a crush on him, they’re basically just bros being bros. I understand how Yukika had long lasting feelings for him and was way too shy to actually approach him, but the fact that she was stalking him for 10 years seems way too weird to me and shouldn’t be brushed off easily, she was admiring him from afar for a decade to the point where she started idolizing him. I think they would’ve made a weird match, kinda like a fan and an idol dating? Seems weird but I wouldn’t know since their relationship didn’t get a lot of development. I don’t think that the fact that he doesn’t get interested in anyone as easily as Takeo makes him a certain sexuality, he’s just vibing and taking his time trying to find someone that matches him. Understandable