Does a mistress have to be a kept women?

A mistress does not have to be a kept woman, as the term typically refers to a woman in a romantic or sexual relationship with a married man, regardless of financial support. While some mistresses may receive financial assistance or gifts from their partners, others may maintain their independence and not rely on them for financial stability. The nature of the relationship can vary widely based on individual circumstances and personal choices. Ultimately, the dynamics of each relationship are unique and shaped by the preferences of those involved.