Jaskier: What about Yennefer?

Geralt: If she's hurt Ciri, I may just have to kill her.

Jaskier: Oh, no, well, obviously we'll kill her. We'll definitely kill her. I just haven't found a good enough jabbing stick yet. But what if she's changed too? People do stupid things when they think they're trapped in a corner, Geralt. And they say stupid things. That's what friends do. They come back.