"A Nobody is interfering, I think."

[This is said in a concerned manner. She is trying to help Sora wake up, but cannot due to this interference.]

"Back to Sora? If you return your memories to him, you'll disappear. And since everything about you was built on those memories...no one will remember you when you're gone. There won't be any "you" to remember. I can't save you, Xion—even a memory of you.

[This is said in an informative, yet somber tone.]
(Xion is pronounced as "She-on")

"To look after Sora. I remember. I'm sorry... I'm not sure I've kept that promise very well."

[This is said in a regretful manner. Namine feels bad that she has not been able to fulfill her promise.]