Zhao Youyue did not realise that her identity in the source world as Princess Olivia was now respected by the enemy's army for her "patriotism".
Regardless of the age or civilisation, those who did not bow to their suppressors would be respected by the rest of the human race. Only a few would defend themselves until their last breaths. Hence, their courage was commendable.
Since Olivia had been left in an unconscious state, Zhao Youyue temporarily left the source world to head back to reality. She had to regain her bearings and make sure that she was from planet Earth, and she was Zhao Youyue, not Olivia.