You couldn't have helped it. Not this time. [It's true. No one has been able to outwit Acumen on purpose, at least no one Ritsuka knows of.
Besides it wasn't Soubi who left - if anyone should be blamed for leaving it should be Ritsuka himself. Not only by coming to the dome, but if Ritsuka's theory is true, and the true Ritsuka did return when he was taken here, then he may be responsible for leaving Soubi in a far more devastating way. He's too terrified of the answer to say anything though, to see if Soubi had even noticed.]