He hides his suspicions well, and Telrim is quite preoccupied with her own concerns. The Controller doesn't suspect a thing.

Nonetheless she gives him an uncertain look and drops her gaze, because Natasha would be sad about that. "I guess it's hard for me to understand what it must have been like for you. I've never really had family, but there've always been people I could count on. I... was luckier than I realised, I suppose."