"I know. You had a reason, and since there was someone to protect, it was a good reason." Or, at least, a fair justification - Zhaan does not believe it is ever good to kill. "But if you fight and kill for petty reasons, or mere vengeance, you will destroy yourself. I only ask that you be careful not to act out of anger or pride." Her tone is even, her words straightforward. Zhaan is not begging a promise of Hektor, but merely offering advice.