Generally one offers a tissue here and Erin realizes she forgot to get anything like that just now when she actually needs it. So instead she gets up, retrieves SecUnit's tea, and offers it patiently with her head still turned away, so she's 'looking' off to its right.

"I'm sorry, SecUnit," she repeats, though this time it's out of her human mouth at least and she can express her sympathy, her worry, in her voice.