Is it permissible for a woman to dislike marriage and refrain from it definitively after a failed marriage experience, and to return to her previous life of work and helping others? And is it permissible for her to use pills to permanently eliminate sexual desire to avoid thinking about men?

The sister who asked the question must differentiate between Islam, which is the true religion of Allah, and people's understanding and application of it. No one's understanding or conduct can be an argument against Islam, except for the Messenger of Allah, peace and blessings be upon him. Freedom in Islam is bound by the upright Sharia, and this applies to men and women equally. Every real flaw in a husband or wife is a defect in the person, not in the religion. The questioner should not let her marriage experience be the judge of the religion, and she should repent to Allah for her ill thoughts about the religion and for blaming it for her husband's mistakes. She should also read books such as "Woman Between Islam's Honoring and Ignorance's Humiliation" and "Woman Between Jurisprudence and Law."