Sam shrugged slightly. "I don't know, but you do have your own problems too, you don't need to hear all about mine." He knew from previous experience how hard it must be for her to be without her brother. Despite the earlier flinch he felt the loss of her touch more than he cared to admit so when he once again felt the warmth of her hand on his back he actually did relax a little.
The frame of mind Sam was in right now he'd have said they were both cursed, he and Dean. "Just about everyone who's ever helped us has paid the price for it one way or the other." He sighed. "Not that it's a competition." He added quickly with a small flicker of a smile.
He turned to look at her at her mention of being a witch. He hadn't expected that, in all honesty he wasn't the biggest fan of witches but when he looked into her eyes he saw no malice there, only compassion, possibly affection. So he took it in stride, as he did with most surprising or out of the ordinary news. "I think even if you were a curse expert this one would give you a run for your money. It's old, real old, like biblical. Apparently forged by Lucifer himself and he's a stubborn son of bitch when he puts his mind to something, let me tell you."