No. [There's an edge to his tone when he emphasizes that answer. The chances of him willingly going along with Xehanort's plan are zero, and even the suggestion that he was here because of it was enough to get his temper slightly riled.

He waits until Xemnas finishes his not-so-internal musing, watching him pace. Once the Nobody is finished, he shrugs, and very purposefully begins to emulate his speaking patterns.] It is as I said - I am a possibility. The twists and turns of my own universe are small, but numerous; as curious as I am about how your universe works, I will refrain from asking.

[Ugh. Talking like this is leaving a bitter taste in his mouth. But still, he continues.] How could I not, when I very distinctly recall being you?