I know how you feel ;-;
here
http://www.mangago.zone/read-manga/kimi_no_sumire/
19 days is good. And so is "my weird roomate" on webtoon
Also, read the other story of Akimi Yoshida cause there is a panel with Ash and eiji being happy high schoolers in it. For me, writing and reading fanfics helped me witg getting over it. Good luck
heard this one was super alike http://www.mangago.zone/read-manga/max_mojave_s_case/
I just finished Banana Fish, I’m gonna have a mental breakdown.
Someone recommend me fluffy shounen-ai.
Or anything with a black haired MC and a blonde ML so I can pretend they’re Eiji and Ash.