How does psyche's sisters create doubts about her future husband?

Psyche's sisters create doubts about her future husband by expressing jealousy and skepticism about her relationship with Eros, the god of love. They suggest that he may be hiding his true nature, warning Psyche that she might be married to a monster instead of a divine being. Their fear and insecurity lead Psyche to question her own happiness and the stability of her marriage, ultimately influencing her decision to defy Eros's wishes. This manipulation reflects their own envy and desire for a similar fate, casting a shadow over Psyche's trust and contentment.