[Well, good to know that in this at least, he's getting a pass from Roxas. As for what was going on…]

Well, I was about a minute away from selling my soul to Xehanort's Heartless.

[One can probably hear the grimace on Riku's face just from his voice – knowing what he knows now about how Xehanort operates, what he'd intended for Riku's body… oh yes, he's very glad that he's developed an immunity to this particular brand of Darkness.]

As for why I started it… that's a longer story, I guess. You got time for that?

[It's not that Riku isn't willing to share… but if Roxas has somewhere better to be, he isn't going to hold him here for it either.]