She actually said the exact opposite. From your link:
Palfrey’s two handwritten notes were released to the public. In one of them, she wrote to her sister, “You must comprehend there was no way out, I.E. ‘exit strategy,’ for me other than the one I have chosen here.” In another, she described her predicament as a “modern-day lynching”. She said she feared that, at the end of serving her sentence, she would be “in my late 50s a broken, penniless and very much alone woman”.[28][30]