I remember reading a oneshot but for the life of me, I can't remember the title. Its about two friends sharing a room. Although the two friend really like one another, they won't get together because one of them is a homophobia so they draw a line in the room so that they will not cross into the others' space. I think the seme who is not homophobia start bringing in different girls with the same name as the uke into their shared room just to annoy the uke. The uke always have his headphone on when the seme bring in these girls.

Ouji no Hakoniwa, 2nd story.

Thank you. That's the one.