I believe it's going to be a "you didn't write the story, it only came to you as an inspiration. Hence, you are unrelated to whatever has happened to the novel when you 'transcribed' it". Despite the adaptability which Fiona shows in admitting that this was reality, her stubbornes regarding the novel's plot is annoyingly contradicting. She is both acknowledging the reality while also overlooking the domino effect which she has already triggered. Hence, she shouldn't be too sure of herself about the future.
Anyway, the uploaders are like 3 entities trying to outdo each other.
I Became the Wife of the Male Lead