Shortly after this incident, Elise meets Eryka in a bar to finish questioning her. When Eryka arrives, she notices that Elise is wearing makeup, something she has never done before. After discovering that it is Elise's birthday, Eryka insists on buying a bottle of champagne for them to share. Although she dislikes the taste of alcohol, Elise agrees. As they drink, Eryka questions Elise about her sister, and later lets slip that she feels a connection to her, which Elise admits she feels as well. Later, as Eryka walks the slightly drunk Elise home, she blocks her path and stares intently into her eyes, as if she were about to kiss her. Rattled, Elise tells Eryka her boyfriend is waiting for her and quickly makes her exit, leaving Eryka visibly disappointed. The next day, Karl and Elise interview Eryka again. Karl notices the interaction between them is not entirely professional and becomes suspicious when Elise begins to play down the evidence stacking up against Eryka. Sometime later, Gaël, having grown fed up of Elise, breaks up with her and moves out. Later that same evening, Eryka arrives to say goodbye to Elise before returning to Hamburg to see her grandmother. On impulse, Elise invites her in. While looking at Elise's book collection, she admits that Gael broke up with her because she didn't love him. When Eryka presses further, Elise accidentally lets slip that she loves her instead. She attempts to backtrack by insisting that her feelings for her are purely platonic, but Eryka gently touches her face, silencing her, and asks if she's quite sure of that. In response, Elise kisses her. Eryka returns the kiss and then takes Elise to bed. The following day, Karl sees that Elise is now defending Eryka more fiercely, particularly when evidence comes in that suggests that Eryka's card was used to buy the tampered phone used to hack into the plane. He eventually asks her point blank if she is having sex with Eryka. Elise erupts in anger at this question, but eventually agrees to look at the evidence. Upon doing so, she sees that Eryka's card was used by the same man who was seen boarding the plane with Bresson, and realises that Eryka was indeed involved in its destruction. Distraught, she calls Olivier to come to her apartment to tell him everything, when Eryka unexpectedly shows up to say hello.