User blog comment:B214/Chapter 513: Hanamaru/@comment-4507125-20161205155546/@comment-99.65.100.71-20161205201928

Wait why would she have to have any kind of relationship with Acnologia? She said she was the former Dragon Queen, so to me it makes more sense that she had something to do with the former Dragon King that Acnologia would have had to kill to become the new Dragon King.