I remember I like this story when I read it for the first time, but I also used to think Ryohei doesn’t love Yuuma a lot like some of you said. Buuuut for some reason when I rereading this after I got a bit older my perspective kind of changed?
Maybe because I understand why Yuuma loves Ryohei so much in the first place, he’s Yuuma first love and we all losing our head over first love. He admires him, he’s everything Yuuma cannot be. And even after they got together Yuuma still continues to be Ryohei biggest fan.
Ryohei on the other hand shows interest in Yuuma because he is something new, fresh, pure curiosity. But after time curiosity changes to adoration. Think about it, if you found a person who got good looks, would do anything for you and will love you unconditionally, can you really not love them back? As for me I would 100% want to return their feelings with everything I have, and Ryohei did do that which I think it’s realistic.
At the end of story I think they both love each other deeply and equally. I interpret the marriage scene chapter as Ryohei are the one who wants to marry Yuuma at some point, but he knows it won’t be easy (with Yuuma family and his career) that’s why he shows anxiety and told Yuuma that he can’t promise him something like marriage YET, but he wants to give his everything to Yuuma.
It said ‘End’ but the page said ‘To be continued’
Never let them know your next move, huh?
I think it's just this side story is called End.