There are people, both women and men, who specialize in deceiving, defrauding, and playing with the emotions of those who show vulnerability. It has always been believed that women are less strong than men, and perhaps this is true physically in some cases—there are women who are much stronger than some men, even physically. So, to mistreat and deceive, you don't need a specific gender, but rather a mind capable of staging a charade and a victim capable of falling for it. Even those with the most daring and sharp minds can easily fall prey.