maybe this one https://www.mangago.me/read-manga/never_understand/ ?? ni-chan
I remember one scene that the seme trying to condescending the uke and one of his classmate throwing his book and the uke take his book and smile at the seme. The seme always asks why he always smile and nice to him.
So the seme always bully the uke in the school buf tje uke always nice to him, in the end the seme regret it as he realized his feeling to the uke.