Answer and Explanation: Catherine starves herself in Wuthering Heights so that she does not have to give Heathcliff and Edgar, the two men in a love triangle with her, an answer about which one she chooses to be with.
In Wuthering Heights, Catherine becomes ill because of a discrepancy between her inner and outer realities: living outside of societal norms with Heathcliff versus living well within society's bounds with Edgar, but separated from Heathcliff [11, p. 6].
1 Unwittingly, we must presume, the great neurologist extended his disdain to one of the great English novels, Emily Bronte's Wuthering Heights, where the heroine, Catherine Earnshaw, died of a disease diagnosed as "brain fever".
Catherine is free-spirited, beautiful, spoiled, and often arrogant. She is given to fits of temper, and she is torn between her wild passion for Heathcliff and her social ambition. She brings misery to both of the men who love her.
Catherine ended up trapped in a love triangle with Heathcliff and Edgar. Even though she had feelings for the former, she married the latter. This situation affected her health. That is why she died when giving birth to her daughter.
In chapter 29 of Wuthering Heights, Heathcliff tells Nelly Dean about how he dug up Catherine's body just after she was buried, back in chapter sixteen. Heathcliff went alone to the churchyard and, wild in grief for Catherine, dug down to her coffin and attempted to wrench it open.
Catherine gives birth to a daughter, Cathy, delivering her two months early—the baby is born at midnight, and Catherine passes away two hours later. Upon hearing the news from Nelly, Heathcliff seems to already be aware.
Catherine Linton is described as “an unwelcomed infant,” for she “might have wailed out of life, and nobody cared a morsel, during those first hours of existence.
As noted above, there does not seem to be any evidence that Catherine ever slept with Heathcliff so we can be reasonably certain that Cathy was Edgar's.
Heathcliff puts Cathy over his knee as if she is a little child and boxes her head; yet his remark concerning his ability to punish children is ironic in light of his childish behavior, of his infantile possessiveness and impulsiveness – he clings to the key in a skirmish of literal tooth and nail.
Heathcliff showed that he had narcissistic personality disorder. It would be proved by some evidence which showing the conditions of narcissistic personality disorder as the sign of symptoms in American Psychiatric Association.
When Heathcliff returns, he tells her that Catherine is sick, that he blames Edgar, and that he plans on making her suffer in place of Edgar.
Catherine explains that she cannot marry Heathcliff because Hindley has degraded him so much; however, she expresses her love for Heathcliff. She prefaces her remarks with "It would degrade me to marry Heathcliff," and these are the words he overhears.
and Mrs. Linton themselves come down with the sickness and die. The civilized Linton's try to cure Catherine's fever (i.e. passion), but instead they are killed by it.
Heathcliff tells Nelly that he persuaded the sexton to dig up Catherine's grave. He stares at her dusty corpse and bribes the sexton to put his body next to hers when he dies. He has no fear of disturbing the dead, he tells Nelly. Cathy has been haunting him for eighteen years.
By Emily Brontë
Catherine actually does get sick and, in a feverish delirium, she begins to name all of the bird feathers coming out of her pillow. She starts hallucinating, doesn't recognize her own reflection in the mirror, and tells Nelly that in her confused state she thought she was back home at Wuthering Heights.
He says that he can forgive her for the pain she has caused him, but that he can never forgive her for the pain that she has caused herself—he adds that she has killed herself through her behavior, and that he could never forgive her murderer.
After Catherine's death in Wuthering Heights, Heathcliff begins a slow descent into madness. One after the other, everyone he once hated and sought revenge on has died, including Hindley, Edgar, Isabella, and Linton, the son he shared with Isabella.
There aren't any sex scenes between Cathy and Heathcliff or even implied. True, there are scenes with sexual undertones but Heathcliff has a very physical desire for Cathy. Had they actually had sex, their relationship might have gone on longer or might not have as the tensions would have been relieved.
This kidnapping, the first time Heathcliff does something entirely outside the limits of the law, is an act of desperation on his behalf; Linton needs to marry Cathy before Edgar's death, and Edgar needs to die before Linton does in order for Heathcliff to solidify his claim on Thrushcross Grange.
In chapter 13, just as Catherine begins to recover from her nervous breakdown, she discovers she is pregnant.
7 Cathy's pregnancy – as well as her immodesty, immorality, and illness – is revealed to the reader before she gives birth; Frances' pregnancy – though not her illness or potential immorality – is concealed from the reader until after the birth of her child. Wuthering Heights hinges on concealment.
When Catherine sees the wounds on Heathcliff's back from some mysterious master or parent, she doesn't treat them or kiss them, she licks them, as though it's her only sustenance in this overwhelming landscape that swallows people whole.
Heathcliff's abuse of the innocent, Isabella, who only wants to love him, indicates that he has no boundaries when it comes to satisfying his desire for revenge.
Lockwood estimates Heathcliff as about forty and Cathy as not yet seventeen.