The episode finally reveals the truth about Macy's death. Stephen was driving her car while intoxicated, crashed it, and then moved her body to the driver’s seat to frame her and save himself.
In her grief and intoxication, Lucy sleeps with Evan—Bree’s boyfriend—marking a massive moral failing for "the nice guy" of the group. Tell.Me.Lies.S01E10.Subbed.ITA.mp4
Despite Lucy staying at school for the summer just to be with Stephen, he publicly dumps her at a Hawaiian-themed party. Influenced by Diana’s offer of a job at her father's law firm, he walks out of the party hand-in-hand with Diana, leaving Lucy devastated. The episode finally reveals the truth about Macy's death