Who: John Winchester and Mary Winchester Campbell What: Meeting face to face Where: When: Shortly after John's arrival Warnings: Winchesters.
John wasn't sure what to make of the woman claiming to be Mary. She looked like Mary had looked before Dean was born. Young, so full of life and love and promise. Her whole life lay ahead of her, back then, only John didn't know about the deal she'd made to save his life. If she'd had her way, he never would have known, but things hadn't worked out that way.
And this woman, this demon or whatever she happened to be, was playing clueless. Like John shouldn't know anything about the deal, or the world of demons and creatures that Mary spent the first half of her life fighting. He'd gotten one hell of a wake up call the night Mary was killed by the demon in Sam's nursery.
Whatever she was, he was going to expose her, and likely kill her. It. Whatever it was. No one was going to use his Mary's face. Her memory may have been tainted by the truth of what she'd done, and all that she'd hidden from him, but vengeance for her death was sometimes the only thing that kept him going, and he would not rest until he saw it done.
So he'd meet with this Mary-faced creature, and try to figure out the end game. That was assuming she showed up.