The only one i can remember rn is https://www.mangago.me/read-manga/hardcore_vanilla/ (brb when I can think of some others)
You didn't specify but last one was straight, all of this are BL
https://www.mangago.me/read-manga/hellen/ this one is rlly toxic but it fits so
https://www.mangago.me/read-manga/hinekure_sakura_ni_koi_ga_saku/
https://www.mangago.me/read-manga/suki_de_gomen/
https://www.mangago.me/read-manga/window_beyond_window/
https://www.mangago.me/read-manga/nirameba_koi/ (not exactly but lowkey)
https://www.mangago.me/read-manga/tadatada_suki_to_iu_dake_de/ this one kinda starts like that but the main focus is of them together
https://www.mangago.me/read-manga/ore_no_koibito_no_hanbun_wa_junjou_de_dekite_iru/ this is a established relationship but their dynamic fits
Srry honestly I've read too many stories and I'm starting to forget abt them
im looking for some rec where the dynamic is :
A is deeply in love with B
B knows about his feelings but never shows that he knows and pushes A to the edge so he can tell him explicitly that he loves him
if you have something like that to recommend!! ill take it