And I'd be perfectly fine with that but the problem is she lead into all of this with mental breakdowns before Punk's "I dig Crazy chicks" and before Kane was in the picture. So she can't be totally on the manipulative end of the spectrum. And there's enough evidence of her being manipulative that she probably can't be totally on the crazy end, either (though you could actually explain away everything she's done as whims of a crazy person, on a stretch)
Mental breakdowns, yes. Like SMuffin said, she lost the love of her life for the crime of giving him a good luck kiss. She was devastated for a month and kept trying to crawl back to Bryan and just make things right again, but he kept refusing. That was legit. There was no psychotic behavior or manipulation there, just a dark attachment to a dead ideal.
THEN Punk entered the picture, and THEN the "psycho behavior" started happening.
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Thank you, Eddie Guerrero.
http://www.wwe.com/f/styles/photo_large/public/photo/image/2012/04/33_Moscow_04112012jg_02128.jpg