"She can be faithful where I could not." There's an odd half-regretful tone in her voice, and when she turns it's with a smile of surpassing sweetness, though her eyes are bright.

"It is my nature. If I had been there, Davy Jones would not have become what you knew him to be. Not this," she waves a hand at the cabin, "wreck of a man. Not doomed. Ye have the power to take your destiny, William Turner; you and your Elizabeth. It need not be the same as his."

It's a few steps back to Will; she doesn't take them. "Curses can be broken."