"It can't end in a question?" She growled, staring at the screen that had been the focus of her entire day, to the last paragraphs she'd been struggling over for the past two hours. 
"It can't end in a question? Why not? What's wrong with it?" 
It was silly, after all, she'd been working on a cliffhanger, and this question. This final question. Gave her that. 
At least...she thought it had. 
But now she wasn't so sure.
And she hated the feeling.
Hated that the doubt was once again in her mind where certainty had flowed so strongly. 

-Inspiration from frustration in writing/editing