I mostly with your comment, but I wanted to add another perspective.
In the first chapter, I didn't see the seme as homophobic (though I understand where that came from). I felt like his reaction to the uke coming out was reasonable. In the same way that a man living with a random woman could be seem as inappropriate, I believe that the seme felt uncomfortable living with a stranger who might be sexually attracted to him. Had they met in a different context, I think the seme would've been a lot more accepting
I was at first, pretty annoyed at the black haired dude, because he was pretty prejudiced and well...sorta homophobic? But then reading the second chapter i was more annoyed with the other dude.
I'm not sure if the author thinks it's completely normal and fine to (i'm gonna use this term very loosely) almost sexually assault (or kiss maybe ?) someone in their sleep...but it's a hard no from me.
If someone (even if i were attracted to them) tried to do something to me in my sleep, i too would have kicked them out.
I don't think they should end up together either if i'm gonna be completely honest.