isn't fully honest to her husband. Only
audience, know the extent of her plots and motivations.
allowing us to hear her soliloquies, Shakespeare emphasises the divide between appearances and reality and how extreme her deceit really is.
Other characters on stage are oblivious of who she really is, but we know the dark truth.
as plot develops, her own sense of self deteriorates
.Her suffering, torment, and hallucinations are side effects of her fragmented self.
She has manipulated her identity so much that she is no one at all.