... I don't know what you expect us to do.

He's outright admitted to killing people for his own benefits. Not even fighting them or anything. Not feeding off of his enemies.

I honestly have no clue what Saber can do now without her immediately confronting him about how he's effectively bragging about killing people. He's basically said he kills and eats people and doesn't feel remorse or try and, I don't know, feed without killing or something.

I have no idea what I can do with Saber that isn't confronting him and likely ending up trying to kill him. There's nothing else I can even think of that's IC.