Despite knowing that she wouldn't be able to outrun the alpha's beast, Dawn was still trying to escape from him. She was shock that he actually managed to find her.
She didn't want to talk with him, not yet. Dawn still needed time to gather her thought.
Yes, it was something that happened in their past life and nothing like that happened in this lifetime and Zenith kept his promise that he was going to fix it.
Not like Blake, he kept his word and did the unthinkable. Dawn didn't even think that turning back time was something that you could do, but Zenith did it. For what cost? Every magic had a price that you have to pay.
Dawn didn't want to talk about it just yet.
Therefore, in her desperate attempt to get away from him, she ran away, knowing she had zero chance to escape.
However, the black beast actually didn't stop her, he ran beside her, as if they were taking a leisure walk together.