She also learns that Gail was involved in a conspiracy against Paul and encourages Gail to go and be with her daughter New York. She later tells Ned Willis (Ben Hall) that she thought Gail came to Erinsborough to get to know her. Ned encourages her to say goodbye to Gail properly. While Terese and Paul are honeymooning in London, they decide to meet Harlow's mother, Prue Wallace (Denise van Outen). Harlow tries to put them off and tells Amy Williams (Zoe Cramond) that Prue is in a cult. After Mark publicly humiliates Roxy, Harlow and Sheila encourage her to end the relationship, which she does. Harlow repeatedly clashes with Hendrix Greyson (Benny Turland), who attempts to sabotage her presentation at school. During the school dance, Harlow confronts Hendrix for kissing Olivia Lane (Grace O'Sullivan) in front of his date Mackenzie Hargreaves (Georgie Stone). Olivia accuses Harlow for being jealous, and Hendrix kisses her. She then slaps him. During a Melbourne Cup event at Lassiters, Harlow is injured when Hendrix crashes into a marquee, trapping her inside. Roxy frees her and Harlow thanks her for caring. She refuses to accept Hendrix's half-hearted apology. Days later, Harlow and Roxy find the Melbourne Cup trophy in the boot of their car. After taking some photos with it, they bring it back to Terese, who initially accuses Roxy of taking it, however, Harlow believes it was Hendrix and CCTV confirms he was responsible. When David needs a kidney transplant, Harlow decides to ask Robert to get tested, which Paul opposes. Robert is a match and he agrees to donate his kidney. He later escapes from the hospital and calls Harlow to meet him. He tries to persuade her to leave town with him, but she refuses and convinces him to return to the hospital and save David. Harlow decides to study psychology and she asks former school teacher Finn Kelly) (Rob Mills) to tutor her. Harlow develops a crush on Hendrix, which he soon notices. He shows up to her home shirtless and tries to seduce her in a classroom in order to get her to admit it. Harlow denies liking him. While practising her driving lessons with Terese, Harlow accidentally hits and kills Clementine, a cat that Hendrix had grown fond of.