You may be hating that person, you may be sure you will never see them again, you may have a few last words you want to say… But you can’t actually know/make sure you will never see them again, you can’t be sure that this point is the end of your relationship, and people need people therefore you can never know who you will need on your side in the future.

It might be your boss, your ex who was an asshole, your neighbor from your parents’ house, your classmate from a class you took for a single semester… No matter what, just try to be as calm and nice as you can as you end your relationship.