Best trope of all time
Read my GOAT omg https://www.mangago.me/read-manga/o_g_oh_my_god/
And theres also like, Colour Recipe and Legroom (づ ̄ ³ ̄)づ
There is another one where there are two guys who want the bottom. With one he already has a relationship but the top is a bit selfish and then there is another one who is black hair and completely obsessed with the bottom. And the top breaks up with the guy who is selfish and then gets together with the black-haired one. He then also has e.g. nosebleeds while they become intimate.
(● ̄(エ) ̄●)

PLS RECOMMEND SOME BL WHERE THE TOP IS OBSESSED BUT LIKE REEEAAALY OBSESSED WITH THE BOTTOM
Thaaaanksss(⌒▽⌒)