Phaedra's eyes went that ethereal green again once Cas's blood began to fill one of the donor bottles. She couldn't really help it. She was hungry, and blood was food.
If it's all the same... trust is something that must be built over time.... You're perhaps the first vampire I've encountered who lacks malicious intent. It seems I need to adjust.
"I trust even less easily than you do," Phaedra said. She didn't qualify it. Castiel did not need to know why she was that way. Not right now.
"You... could benefit..."
Her attention was more on the blood flowing out of his veins than it was on trying to speak.
"... from believing that vampires have many motives. In general, if I show up at your door, I was hired to be there. I don't always want the memories I get from blood. I didn't have a choice in that matter."
She raised her eyes to his, making sure that he understood exactly how much that particular ability might hurt.
"I will destroy whatever put me here. In this position," she added. Phaedra's voice sounded very, very tired.