Oh she knew exactly, she remembered a conversation in her car not too long after she'd caught up with him to point out, how pointless his random hunts were. Turned out though, one particular hunt had the side effect of setting him on the path.
"I know, You don't want to still be doing this in years to come. I do get that. And I know you won't be, because you and me, we can do this, we can stand against Lilith and we can win"
She reached out, pulling his free hand to her hip.
"Whatever else you think about, whenever it gets under your skin. I want you to think about why its important. The things you have to do Sam, the power you have to learn to control. Its hard. So consider what we do something beyond that, a way to unwind if nothing else, because you come to me and you're tense, you're alwsys so tense. Not now though are you. Not right now"