what she means:
It's just that things ended so suddenly between us. You used to be a part of me. But then you weren't. And we had to face each other in a duel. A duel to determine whether I was ready to stand on my own. And when I defeated you, you left us. You left me. I know it was for the best, but I wish I had just one more chance to let him know what he meant to me. But destiny had different plans for us.