She processed the things he said quickly in order. "Huh. Way way younger than when John last saw Jack, out there," she said waving vaguely, and smiling sadly at him. "I don't know anything about a Doctor, sorry, and immortal, yeah I guess you could call it that. You're nearer to knowing John from his time at the Agency, aren't you?" she looked at him curiously. "I'm presuming that happened in your timeline?"