She triggered the war between the two countries, but left at the beginning. She was not cold-blooded, but helpless. She knew that the war started because of her. There were people she liked on both sides, and she didn't know which side to help.
When she wanted to go back and take a look, the outcome of the war had already been decided... The happiness she once had was no longer there. She decided to save another person, but she hadn't figured out the outcome yet...