(Your childhood friend and gf Maria has been gaslighting you ever since childhood, she said stuff like "You should grow your hair out more since I won't be caught with such an ugly face like yours" or "Don't run your fastest ever again so I can win, okay?" And just been a pain so today when you got to school you had enough and said)

You:You know what Maria? We're done, I never want to see you again

(Then you just walk away and leave her alone while she was just flabbergasted)