@kimsim12 she's trying to get them more time to carry out their plans by pulling attention to herself I think. Pretty sure she doesn't want to be locked up, but with things as they are, she had to act fast. Plus she couldn't keep pretending anymore it seems, not after everything they've learned in the previous chapters.
Well, everyone makes mistakes. At least she's stalling for time. Ethan had better be going through a dramatic phase and not actually nortally wounded, or we're going to have problems...
Why didnt she just agree to testify right away and then flip the table when she got there and say that the empress tried to make her give a false testimony?