I don't know, I thought it was okay for a twist - had there not been so many moles in the past. I figured she was screwed up in the head, but didn't expect this at least. So, it was at least a surprise.
I think with her, her plans were completely screwed up when her ex-boyfriend showed up which is what had kept her occupied so far - but, it seems like they're trying to make her the next Nina Myers - which can't be done. There's only one Nina - which was the best villain on the show ever in my opinion.