Whole
Gwen watched Jack leaving the morgue, and her attention turned to the boy with the clipboard, standing over Suzie's body. Her mind drifted to something he had said to her, the first rare time they've been alone since her joining.
'Torchwood isn't a place for whole souls.'
Gwen's mind had been on adventure and excitement; she didn't take Ianto's advice to go home anywhere near her head.
Now she thought of her 'relationship' with Owen, going against her own beliefs and not caring about Tosh; of her 'fantasies' about Jack; of poor, plain Rhys, sitting home, believing in her lies which she told so easily; and then of all the deaths and catastrophes that are her fault. Her corruption.
She thought about her colleagues, with everything she knows and doesn't know, they wouldn't be any better.
When Ianto and Gwen were alone again, she asked him about what he had said. He shrugged and replied someone told him that when he joined, but he was too caught up in the Lisa business to take any attention.
Glancing back at the CCTV, where the morgue is as still as it should be, Gwen needn't ask who those words came from.