Sylvia Plath folded a dishcloth upon which to place her face deep in a gas oven on a cold winter night in 1963. She died there while her small children slept upstairs.
According to Yehuda Koren and Eilat Negrev in A Lover of Unreason: The Life and Tragic Death of Assia Wevill, Plath's friends inevitably blamed her husband, Ted Hughes, and his affair partner, Assia Wevill. Assia and Ted became involved when Assia and her husband visited Sylvia and Ted's home. Prior to the visit Assia boasting to her boss that she would seduce Ted. And seduced him she did until she and Ted publically flaunted their affair. Days prior to Sylvia's suicide she and Ted had conversed.
Following the suicide Ted and Assia moved into Sylvia's apartment to care for the children. Assia pilfered through Sylvia's things, slept in her bed and, in stereotypical "other woman" style, complained that Plath killed herself to destroy her and Ted's happiness. She complained that "It was very bad luck that the love affair was besmirched by this unfortunate event."
How inconsiderate of Sylvia.
But Assia's lack of conscience and failure of empathy came home, eventually making her into "The weak mistress, forever in the burning shadows of their mysterious seven years." She came to mourn the loss of her "third and sweetest marriage… What insanity, what methodically crazy compulsion drove me… to this nightmare maze of miserable, censorious, middle-aged furies, and Sylvia, my predecessor, between our heads at night."
As Ted worked toward publication of Sylvia's writings, Assia wrote that "Sylvia [is] growing in him, enormous, magnificent. I shrinking daily, both nibble at me. They eat me."
She wrote "She (Plath) had a million times the talent, 1,000 times the will, 100 times the greed and passion that I have. I should never have looked into Pandora's box, and now that I have, I am forced to wear her love-widow's sacking, without any of her compensations. What, in five years' time, will he reproach me for? What sort of woman am I? How much time have I been given? How much time has run out? What have I done with it? Have I used myself to the hilt already? Am I enough for him? AM I ENOUGH FOR HIM?"
When Hughes began dreaming of Plath, he referred to the phenomena as "dream-meetings with Sylvia," and these images found their way into his poetry.
Assia asked one of Sylvia's friends "Do you think Ted and I can be happy together?" The friend replied "Look at him. Sylvia's spirit will always stand between you."
In 1969 Assia died, taking her daughter with her, on a mattress in a kitchen where she had taken sleeping pills, sealed the door and windows and turned on the gas stove.
Assia was evil at worst and stupid at best. Incapable of comprehending the human toll of her folly extracted from another soul, she eventually found the price of human suffering in her own soul. The woman who was determined to seduce Ted Hughes did not know that love unfinished is a spiritual energy with consequences.