Kendall Jenner has allegedly warned her mother Kris Jenner that she is prepared to quit The Kardashians if her relationship with actor Jacob Elordi is dragged into the Hulu series, according to an unnamed insider who spoke to In Touch Weekly. The source claimed Kendall is determined to keep her romance with the Euphoria star off camera and away from what she reportedly sees as her mum's habit of using her daughters' love lives as plot lines. For…