I remember reading the first chapter a few years back and wanted to see how it ended but can't remember the name. I was a while back so I don't remember much, but it's this guy who has unrequited love for another guy and for some reason is visiting said crush, don't know why but he ends up showering and walking into the bedroom (maybe by mistake,not sure) and sees a man laying there with a pillow over his head and in underwear, yaoi logic he thinks his crush is inviting him so he jumps him and they have sex without ever removing the pillow from over his head. Crush then walks in the room to find that his friend actually had sex with crush's live-in lover and they argue but he still spends the night and later can even hear his crush having sex with his lover that night. That's about all I remember, anyone have any idea what it could be called?

Sounds interesting so I searched a bit and nothing showed up. Try searching in the "unrequited love" or "secret crush" tag.
Sorry not helping much ;_;