@Midoriha The way I read it, the black haired girl always admired the blond haired one, but also never liked her "public" face, since she thought it was dishonest but at the same time hated herself for having these thoughts.. By finding her second account, she could empathize with her on a much more personal level (because the dead woman too had the same feelings as her towards other persons) and could consider her a friend. That lead to her giving her (now) friend a proper farewell by visiting her grieving family. I don't think there was a more hidden message.