Sehun never had a serious and long lasting relationship with any of his exes. He was completely fine with it since dating wasn't something he took seriously until he encountered a palm reader that told him that he'd never be able to settle down and find his true love if he sleeps with thirteen different people. Unfortunately for him, he already had twelve exes. He was settled on getting back with one of his exes but unfortunately for him, his charming and flirty neighbor, Jongin, was there to help and distract him at the same time. Based from the movie: What's Your Number