I don't remember getting any presents for coming back.

[It's said lightly, almost teasingly, in an attempt to buy time to decide what he wants to say. There's no real good way to say "yeah well I disappeared and now I've come back with years worth of memories crammed into the same body and it's weird??"]

But... I'm sorry. Believe me, I didn't do it on purpose. I wouldn't leave of my own will without at least telling you first.