Question

What is Catherine's state as she talks to him? What is the reason for this?

Answer 1

Catherine is in a very impatient state at this point of time.
This is because both Major Petkoff and Sergius had come back from the Serbo-Bulgarian War hence she wanted Bluntschli to leave immediately so that they did not get to know how Blunstschli had been saved by Catherine and Raina and if they get to know then Major Petkoff wouldn't forgive them ever for saving an enemy.