"It's all right," Una said quietly. "I should have—well. It's not as if it's an easy thing to explain in the first place." She took a long drink of water and was quiet for a moment, organising her thoughts.

"It's not as if I trust him, exactly," she said. "Not the way I'd trust the other. But there are things about this arrangement that ... Lines that won't be crossed, you might say." She looked at Starbuck with some amount of worry in her expression, concern that perhaps she'd said too much, exposed just a little too much darkness.