What is the name of the yunjae fanfic where jaejoong moves away and yunho cheats on him and gets married and jaejoong moves back and finds out that yunho's wife is cheating on him?

The fanfic you're referring to is likely titled "The Wedding" by the author mrsjaejoong. In this story, Jaejoong moves away, and Yunho, who cheats and marries someone else, later faces complications when Jaejoong returns and discovers Yunho's wife is unfaithful. The narrative explores themes of love, betrayal, and the complexity of relationships.