In flashbacks, Juliet is sent to see the island's therapist, Harper, who seems hostile toward Juliet from the beginning. Juliet had an affair with Harper's husband, Goodwin. Harper knows about the affair and confronts Juliet. She tells Juliet that if the affair doesn't stop, Ben will hurt Goodwin.

Turns out Harper was right as Ben sends Goodwin to live among the tail section survivors, knowing that he will eventually be found out and killed.

Ben clearly has feelings for Juliet and Harper believes it's because she "looks just like her". When Juliet confronts him about letting Goodwin get killed, Ben says that after all it took to find her and get her there, she's his.

Elizabeth Mitchell as Juliet

Episode 4x6, The Other Woman