As always, the reminder of how he'd had to finally end Sam's innocence brought that flicker of sadness for them both, that they'd had to live like that. But like then, like now, some things were necessary and she knew Dean knew that, and also knew he'd keep beating himself up for Ben losing his innocence too, so it wasn't the argument that Ben needed to know that she'd make.
"Dean, he pretty much already did know 'this stuff'," she pointed out, turning on the sofa until her shoulder was against the back and she could study his expressions from the side of his face. "That filter program on his computer or not, no one ever seems to lock down talking about demons and Lilith and what happened to you and all the rest." Sometimes, but not all the time. And even if they did, others didn't. It just wasn't feasible for a person to live in ignorance in this city forever.
"He's like you," she said, giving the straw in her glass a few twirls to mix up the drink before having more, "he wasn't going to sit around and take excuses for answers forever. Telling him lies wasn't going to satisfy him, he would have just went looking on his own – even if Uriel hadn't done this."