Absolutely -- there's no way Miller doesn't remember who told her. She says stuff like, "After a year and a half, it's so hard to remember..." But surely she'd remember after a week or two -- the point at which the Novak story came out at caused a big stir. And once that story came out, how could she forget? Not possible.
I also take her Valerie FLAME (with a box around it) to mean the goal is to "burn Valerie"....and her Victoria Wilson to be "Victoria's Secret". Obviously, Miller has her own little code.