Sometimes the only option you have is to just let it go... An argument. Expectation. Jealousy. Anger. Defeat. Victory. You just have to let it go. You'll know you're hanging on to something that may be weighing you down if you find yourself making mental movies about what you'd say, what you'd do, how you'd do it...if given the chance.
You know you've been there ( I can't possibly be the only one). Making up the script in your head, word for word, about how the argument would go, or should go, so that the outcome would be in your favour. So that you can make your point. Maybe you rehearse this mental movie when you're alone in the car on your long commute home. Maybe you tell someone else about how the hypothetical situation would go if it were to become a reality. But trust me (and it's harder said than done), let it go. It's holding you back. It's weighing you down. It's eating up your present moment. Don't let it.