She actually drops her gaze, and doesn't seem to know what to say. It is possible that, in Teren's fifty-some-odd years of life, she has never been told she was cared about. It could be inferred, certainly. But said outright? Not in the life she lives.
Teren opens her mouth to respond, then simply closes it again, glancing only briefly at Anders before looking away and pursing her lips with the subtlest of nods. "I have things to do," she abruptly decides, and turns to go. A system error has occurred, she has to restart.