Someone who records history, without any emotional attachment. He's done it since he was little. If this is his childhood... it's a lot of the reasons "Rabi" had so much trouble opening his heart to others in the past. All that pain - it has to be terrible for him.
But he got a memory a while back, of accepting that he'd changed and couldn't live heartlessly anymore, even if it hurt, and that he had comrades. And being Red in Sabra la Tau all this time, suffering and being happy and having friends and falling for a girl and having Cepheus - they've all been really important to him. So. . . he can probably handle this on his own.
But in case he can't, we'll just have to remind him. Right?