Imchunta

https://www.mangago.zone/read-manga/itonaga_kun_no_koi_no_ito/
I think it's this but in this it's the same who does the bullying not the uke tho

Sorry it's not this one but thank you
But if y could help if you read it too, The bullied kid return back too and ig he has a scar on his face, and he still thinks that the uke is insufferable because of his relationship with the Seme( who is clearly Social awkward)

I might not have read it but it sounds interesting let me know if u find it

This one? -
https://www.mangago.zone/read-manga/m_nano_baka_nano_hentai_nano/

Hey I finally found it, it's called " Blue Lust"

idk if its rllly what ur looking for since its not thaattt sad and there is a lot of sex yk BUT https://www.mangago.zone/read-manga/no_better_than_strangers/ i personally think its rlly good, tho i will keep looking for u since i got rid of my list :(

That's alright, thankyou so much (｡･ω･｡)ﾉ♡

https://www.mangago.zone/read-manga/rift_conro/
https://www.mangago.zone/read-manga/kimi_ni_ienai_koto_ga_aru/
https://www.mangago.zone/read-manga/kowagaranai_de_soba_ni_ite/
https://www.mangago.zone/read-manga/kanawanu_koi_no_musubikata/
https://www.mangago.zone/read-manga/replicant_hitsuji_no_dolly_wo_aisuru_to_iu_koto/
https://www.mangago.zone/read-manga/daisy_jealousy/

In the same realm here's a list for mutual pining i.e mutually hidden/unrequited love if ur interested (づ_ど)
https://www.mangago.zone/home/mangalist/1869502/

Tonari no stella
Our relationship is...
Both r straight