 Alex once consider Kyle to be one of his best and loyal friends in the FBI.However, when Kyle was revealed to be the "Mastermind", a serial killer who was behind a series of bank robberies, including the murder of Alex's girlfriend, FBI agent Betsey Cavalierre, all of which happened in "Roses Are Red" and "Violets Are Blue".The revelation put a strain on Alex's relationship with Kyle, and made them enemies to each other, with both of them wanting to kill each other.