Responses
I have the same thought, too. He was probably really affected by Sousuke's confessions of love when he was a kid. And probably in the back of his mind was waiting for someone ( he may have even been waiting for Sousuke to grow up and come back) who would confess their love to him like Sousuke did when he was a kid.

"even though he would date, it was like he was waiting for a better person" not to be a softhearted bitch but this took me off what the fuck. betting a dollar that minori took that promise sousuke did seriously