I like how she just was sentenced to prison for her baseless slander, and undeserved discrimination towards Claudia who is currently being thanked for her making the latest war deathless., and decides to double down and just straight up declare that she intends to murder Claudia right here and now, while in front of literally every important figure in the kingdom, like she thinks that even if she does end up killing Claudia, that she will be allowed to just remain a free noble. She is just that much in denial, for seemingly no reason at all. There is no downside to Claudia not being the villainess for her.
They may not kill her because she is still an asset, but she will never see the light of day again as a free person. She is just a host for Grace, and a host needs no legs or arms or tongue to cause more trouble with.