I read this multiple years ago but it was a 5 or 6 chapter one, and near the end of it one of the guys ends up in the other one's room and knocks over a box which was full of pictures of him. please i don't remember anything else but I've been thinking about it for the longest time
I really love childhood friends, so generic recs of those too is fine but I like the short complete ones (5-6 ch)
Specifically the part about one of them plotting for ages to finally "have" the other. BL preferred but GL is fine too
https://www.mangago.zone/read-manga/love_countdown/
https://www.mangago.zone/read-manga/best_friends/
https://www.mangago.zone/read-manga/the_omega_takes_a_husband/
https://www.mangago.zone/read-manga/yagi_to_ookami_no_hatsujou_jijou/
https://www.mangago.zone/read-manga/shitsuren_junky/
theeyre like adults but they were friends in highschool so