What did Psyche's sisters tell her to do?

Psyche was not allowed to look at her husband when they sleep together. But her sisters urged her to figure out if her husband is the monster that they think he is. Then, when Psyche shone the light on her husband, she found out that she was with Eros/Cupid. But because of an agreement Eros/Cupid had with his mother, he now has to leave Psyche. The result of this was that in order to get her husband back, Psyche had to do tasks for Aphrodite, Cupid's mother, who hated her.