That rationalization came way too close to the way Sam had once felt, when he'd first started out using his abilities. He'd thought he was doing a good thing, yet he'd still been playing into the hands of the powers and also the demons that had plans for him.
But hers were different from his, mainly in that she didn't have a choice about using them or not. His had required a lot of effort to use, at least once he'd gotten to that stage. He could hope that hers would be easier to manage, too, but how much hope was there, really? He hadn't known that the blood would make his eyes turn black. And even if he became a demon-- he'd probably have ended up like Dean, except without the Blade's influence, still relatively in control of himself. Sarissa already knew that the Mantle could consume her and take her over entirely. If anything, she was in much more danger than he ever had been.
Solemnly, he stared down at his coffee for a moment before looking back up at her. "Okay. Well, if I have any other ideas, I'll let you know. Otherwise... I'm here, whenever you need help."