It was a yaoi manga There were three people on the cover, in the background there was a library - a blond man, a brown-haired man with glasses and a muscular tattoo artist, I'm not sure exactly. I know that the content was this, the brown-haired guy with glasses was working/or taking care of the library and the blonde was helping him [where he and the blonde were together and then broke up] then the third guy appeared and took care of the blonde, so they were having fun with each other, just to get the attention of the one with glasses...
did missing an old friend
did not sleep
