She did say that she wanted to stop this chain of hatred, and it seemed that she didn’t go so far as to take revenge against Ren.
Because wild animals, or monsters in this case, lived severely.
They didn’t know when they would die, so they didn’t need something like vengeance.
She had a firmly-rooted conscience, thanks to Gaelion’s teachings.
To not be thinking of revenge deserves some merit.
I do respect it, but it’s something I can’t do in practice.