She says “you probably think this song is about you” as an example of how vain he is, but the whole song really is about him. He would have no other way to interpret it.
Hey :) I've looked through your tag- and masterlist, but I couldn't find any fics where Harry owns an orphanage or works on improving the minestry in regards of child abuse. Can you please rec some fics like that if you know any? Thanks in advance :) ♥