It may have seemed like that 'cause, at first, it wad like that
But if you pay attention to little details, you'll notice how often he thought of Yoh EVEN WHILE he was with the other!
That was a big hint 'cause, usually, in stories that end with one couple, it's not like the uke looking at seme's dick would say "wow bigger than my roommate" especially if it's someone he likes X3
At least, not an uke with this personality (there are different types of course)
This is a more reserved type, if you get what I mean
Then, it's not just this, but if you go back to look at chapters in every one of those there would at least one loving thought regarding Yoh and at least one loving thought regarding the editor
And I loved that, aww TwT
As someone said in the comments, it's not often in 3p stories to have a storyline that does make sense!
They also make you understand that Yoh and the Editor do care for each otherr
Although they're not attracted to each other
I kinda jumped to the mid chapter but from my pov, it feels like the uke likes the other guy more, the one he had a bathroom scene with. It just felt like the uke only saw the other guy, the one who lived with him, as someone who was going through things, and that they were the same in some aspect related to those experiences. So it was more of a bond that isn't the romantic type of like. While his feelings for the bathroom scene guy was growing into the type that he wanted him in that level of like.
It could just be me but yeah, that's what it seemed like to me.