Shiro shakes his head, about to say Lotor shouldn't be worried, but the other statement takes him by surprise. There's a moment's pause while he blinks and runs through the various ramifications of it.

"Lotor... Of course I care," he says slowly, voice lower and softer now. "You're an ally, a member of the team, the greatest hope for peace in this universe... and a survivor. You've proven over and over that your blood has no bearing on your attitudes. You're... a friend. Maybe more, I don't know. But I was always going to care." Hesitant fingers stroke flowing white hair. Just once, but the touch is there.