Yeah I'm gonna put my faith in Minju for now and say she's not being malicious or trying to deceive Marie. She's super popular so she might not understand how friendless people feel. After all, Marie isn't her only friend.
@toulousemc Probably to show that from the pov of Ayato's BL story, he's nothing but a faceless unimportant side character. Exactly like what he want to be.