There’s only one plausible reason for that... she’s an idiot
Well her whole point in this manhwa is that- when she was transmigrated, she expected to become the female lead which is Cecile but instead she became the saint who pretty much does little in the story and dies while saving the emperor- she wants all goes handsome guys she created in the story to be by her all the time and one of those is the emperor- butt the story is not going how she wrote it anymore, starting with the dragon, it appeared way too early into the storeh which then changed the course of the story so it’d not the same anymore, little bu little, the story is changing and she doesn’t like it because the emperor is also changing and she wants to keep the emperor the same as she wrote it- because the story is not even following the way she wrote it anymore- she is scared ig- I mean Cecile can use magic but that wasn’t revealed until almost at the end of the novel but it got revealed way too early into the Novel, that was one of the changes too- so basically she just wants to keep everything the same and she thinks if she becomes Cecil everything will go back to normal which is delusional thinking but hey, she is the author and she thinks she can just change all of the character’a lives when she knows they are all living beings- well this pretty much sums it up- our delusional saint
She wants to be Cecile but she also wants the 'villianess' (a.k.a Cecile) to disappear? I get it that she wants to be Cecile to have the emperor but now she's saying that it's for everyone's sakes what?? Isn't she the author like, she should know that the story is progressing like how she wrote it??