Dawn, who was struggling in battle, did not know that there were people discussing her Sword Truth, obsession and childhood from a distance away. She did not know that the youth that had luckily survived her attack had hit upon the truth.
Yes, she was in a dilemma.
Her dilemma prevented her from having the intention to kill.
Without killing intent, she was naturally unable to activate her massacring Sword Truth. All she could do was use Sword Intent which did not need any obsession.
However, Sword Intent was not able to withstand Sword Truth after all. Furthermore, the youth that was attacking her in an incessant manner had an obsession that was so striking. His Sword Truth was resplendent gold. It was dazzling and pretty like the star-filled sky.