Idk I just like BL tropes when the s/o is also an authoritative figure like a superior to his partner at work. In my story, Suho is. He's equally as strict to Heesung with the other trainees, maybe a bit more cos Heesung joined while still needing to improve in a lot of areas. But after work hours, Suho will always come to Heesung to praise his hardwork and would apologize sweetly if he gave Heesung a hard time