Responses
It's haruto i think*
He said that he liked misaki the first time he saw him, so he probably spread the rumor of them being closed or stuff that's why he explained his plan to misaki, which is the tape thingy.
Btw I'm not completely sure, it's just how i see it after haruto blushed after he's asked by misaki's childhood friend*
So who spread the rumour?