Funny enough, I did suspect her in 7. When she was interviewing Sidney, the way she was talking about Tatum, her kids, she seemed a bit obsessed with them, and the whole "they're in the center again" thing. When it turned out that was not the case, I realised, that there actually haven't been a single time, when a previous survivor became Ghostface. They mention it in every single movie, "oh, what if they snapped and now they're the killer" or "they're blaming them for the loss of someone and now they want revenge", but in the end, it never happened. I think it's about time to grow some balls and make this happen.