A femme fatale is a mysterious and seductive woman whose charms ensnare her lovers in bonds of irresistible desire, often leading them into compromising, dangerous, and deadly situations.
The phrase is French for "deadly woman". A femme fatale tries to achieve her hidden purpose by using feminine wiles such as beauty, charm, and sexual allure. In some situations, she uses lying or coercion rather than charm. She may also be (or imply to be) a victim, caught in a situation from which she cannot escape.
In social life, the femme fatale tortures her lover in an asymmetrical relationship, denying confirmation of her affection. She usually drives him to the point of obsession and exhaustion so that he is incapable of making rational decisions.

Have you ever come across a lady with these qualities ....