Family decisions can have a lasting impact, especially when a child grows up feeling like their needs were never prioritized. For some, resentment builds quietly over the years, only to surface during major life milestones.
Weddings, for instance, have a way of drawing out old wounds and testing whether those long-held tensions have really been resolved or were simply buried. Today’s Original Poster (OP) had spent years moving around for the sake of his stepsister, so when he was getting married, he decided he was done doing things just for her sake.
More info: Reddit