[He feels like it's partly his fault for being in this position. He has been over-invested in Riku. He'd let him in much further then perhaps he should have, but he hadn't taken into account that this would happen.]

It isn't like I have anywhere to go.

[He's frowning though.]

I didn't think I was...some kind of back up, I mean. I should've...I don't know. I didn't think it would come to this, you confessing to Sora. Perhaps I was a little naive.