[The dark Servant is holding off still. Saber can't help but wonder if, truly, she wants to do this. Sasha is being taken care of now, so the immediate danger has passed, and someone who was resolved to kill her would never allow things to reach this point and stay locked in this standoff.
If this is true, all she can do is keep trying to talk the woman down, but Saber's not sure how much more she can keep her patience-- really wanting to attack to give the Servant a scare to speed her away. But there's the fact that the girl might fire on her in a panic if she does so...]
Leave, and never appear before her again. Cast her from your thoughts, or live quietly with your hatred if you cannot let go of it.