"I should have done it before you left," she confessed. "I should have done it far sooner than when I did,perhaps even as soon as we left die Festung. I didn't know how bad the world had gotten, then, but I shouldn't have needed to know. I should have done it then."
Leeloo shook her head, then stretched in his lap before settling again. "I am glad I fulfilled my mission, and I will always do it - even if you are not around - but next time, if there is a next time, I will look for you first. I don't want to die."
She didn't want to, but she wasn't afraid to, either, if it meant that she'd be protecting the life on an entire planet. That's what she was designed to do; that's why she was created. She would never hesitate so long as she apparently had before - never again.