Article continues below advertisementCourtney King Is Dylan Efron's High School SweetheartSource: @dylanefron/InstagramDylan Efron and Courtney King have been in a relationship since at least 2016.Dylan Efron is happy and content with his real-life love off the dance floor.The Dancing With the Stars contestant, 33, has been dating his girlfriend, Courtney King, since high school."We're from the same hometown," Efron revealed during a March appearance on "The Viall Files" podcast.