The angel was still an issue, and Faith felt a flare of anger for the being who was supposed to protect the Winchesters from threats like this, not jump into bed with them. A very large part of the blame, in Faith's mind, fell at Castiel's feet. He should have known, should have done something.
"She played all of us," she murmured, dark eyes watching Sam closely. "By the end her true colors were starting to show through, but in the beginning she was one of us. I used to think of her as a friend before she changed."
She bit her lip before slowly uncurling her legs and standing up, hesitating another moment before she made her way over to him. Her hand was almost tentative as she reached out and brushed some of his hair back before she leaned down and gently kissed the top of his head.
"You weren't to know she was lying." Her hand moved down to the back of his neck, a more hesitant version of a neck rub in some attempt to maybe comfort him, or try to feel normal with him again. Faith wasn't too sure.
There were still a lot of unanswered questions, about what they'd done together, and Faith still wanted to know, no matter how much the truth hurt. But even through that, through the hurt and anger that hadn't left yet, she had this urge to try and make Sam feel better somehow.