Help finding yaoi manga pls

omg Idk why I just can’t remember the title but I really wanna read it again... it’s school life and yaoi. The uke is the senpai btw.

It’s about this seme (dark hair) who hates the uke (light hair) cause the uke is just really popular but the uke doesn’t know about it. And then the seme finds the uke making out with this girl (that he’s kinda interested in I think) at the top of the stairway and the uke is kinda oblivious to everything so he asks him if he wanna join LOL. and later on he uses the seme to relieve himself.

and another part I remember is after they kinda had a thing, the seme saw the uke kissing a girl (which was actually just a staged photo to trick the girl’s ex or smth) and then he got rly upset and started ignoring the uke. Then there was a scene when they had gym session but the seme was still ignoring the uke so the uke followed him to place the balls away and cried in the storeroom.

And if I’m not wrong, the uke is the friend of a main lead from another yaoi manga (of the same author). Rly desperately lookin for this now :”) I can remember details but just can’t find the actual manga

Also if it helps, the uke is same height/taller than the seme I think.