Second Chance - Choi Beomgyu

A story where you're given a half piece of a necklace when you are 21 years old, your soulmate has the other piece. Beomgyu and Aria dated before they turned 21 since they had been in love, there is nothing stopping you from finding your soulmate before you receive your necklace but the chances are very low. Aria and Beomgyu end up breaking up because he "cheats" Aria is heart broken and refuses to ever love anyone ever again. Beomgyu and her meet again and he realizes that they are soulmates but doesn't know how to tell her. He still loves her but a small misunderstanding leads them to breaking up. Will Beomgyu be able to get Aria to forgive him and get back together or will she live by the rule she set for herself and never love again?