Xiumin is the push Luhan needs to start living his life again.   So the epilogue turned into more of a sequel to the point where it is now longer than the original story. When I asked who wanted an epilogue I dont really know what I was expecting but this was the only way I could fathom  continuation of my story. It took forever I know, although hopefully it was worth it.Poster credit to my number one chummy Speladl who is probably one of the best graphics people on this site. original story: Dear Sehun