Help me, please

Guys, there's this one manga I read a long time ago and somehow I've been thinking about it again. I just remember the last chapters, so, there's a handsome guy who can't sleep without someone with him because he's scared of the dark and he'll sleep with someone if it means they'll sleep with him for the night. His boyfriend is his co worker who's a little shorter than him and wears glasses. I remember the last chapter or the extras being, he kisses someone who confesses to him to get it over with and gets caught by the boyfriend, when confronted he says it's fine since there were no feelings involved. The boyfriend threatens to do the same with someone else and he begs him not to. There's also a scene where the boyfriend gets drunk and pushes him down, he thinks the boyfriend looks cool like that so, he offers him alcohol again. The last scenario is probably an extra. Does any kind angel out there remember the name of this manga. I'll be really grateful.