Hannah was recently hired as a supervisor for NextDoor Community Credit Union. Hannah supervises Jackson, and Jackson recently told Hannah he finds her attractive. Hannah informed Jackson that she had a boyfriend. Since then, Jackson has asked Hannah on at least two separate occasions whether she "had dumped her no-good boyfriend." Hannah has reported the incident to her employer's human resource department, but Jackson has continued to suggest they should date. Hannah is considering suing her employer. On what grounds might Hannah sue her employer? What defenses, if any, might her employer raise?