Retro-N is not necessarilly wrong. Sometimes childish behaviour is the unintended side-effect of getting into panic for beeing afraid not to meet everyone's expectations and then let stress getting control of your acts. Then again, that's just a wild guess of mine and I'm the less entitled person here to comment about Cammy's reasons. As far as I'm concerned her privacy is to be absolutely respected. If she wants us to know her motives, she will eventually tell us about them. Other than that all we can do now is wish her the best and offer our moral support if that could be of any help at all.