What keeps "spending additional unnecessary amount money something" active is not only the event itself; it is the private meaning your mind keeps attaching to it. Some regrets stay alive because they point at a self you almost became. The ache comes from standing so close to another version of your life and still having to live this one. Confusion can hurt as much as loss when you never got a clean answer. The mind keeps circling what it cannot organize, hoping clarity might reduce the weight. You do not have to make the regret beautiful for it to become useful; you only need to see it clearly enough to stop repeating its logic.