Responses
Behind the desk maybe? been a while since i read it tho, so i'm not sure if it fits your description 100%
http://www.mangago.zone/read-manga/behind_the_desk/
http://www.mangago.zone/read-manga/the_good_luck_story_of_an_unlucky_guy/ Kinda? Even if this is not what you’re looking for its really good you can give it a read

I read a bl about a year ago it was about a school dude who was being abused by his sex partner, and another guy who was like really nice was trying to befriend him, but he kept getting pushed away by the guy. If anyone knows the name could you tell me?