"That's not what I meant." She shifts her weight, particularly uncomfortable at his last words. "I have duties here. I couldn't run from them. But my duty to the Light comes first, and that's about more than training. It's about honor, and strength, and sacrifice."

It may indeed mean 'never coming back' sooner rather than later, but that's not the point in her mind.

"...It's all right, Hughes. I'm talking about dedicating myself to a philosophy, not abandoning this place."