Ellen had just raised the gun to her shoulder. She lowered it again, careful to keep her finger off the trigger, keep the gun pointed away from herself or Dean. The fact she had to think about doing that showed just how shaken she was.
She looked at him, assessing him for a long moment, then nodded.
"She sounds like she was a hell of a woman." She honestly didn't know what he'd put together - whether Dean was talking about Mary, or Ellen. Either way, he'd guessed some.