As I understand, Mao knew all along that it was her who MC worshipped, because she answered in her head to a statement about ice coffee.
Then MC just as well knew all along that it is Mao that she admires as a mangaka, so moving in to next door apartement isn’t really a coincidence.
Is it correct or have I read it wrong? If I am, then this is all levels of creepy...and interesting.