I'm going to tell off an old lady
Why do you want to be cruel to an old lady?
She's an asshole to me all the time.
I understand that this woman hurt you, but getting her back by going off on her isn't correct. Speak with her about how you feel in a calm and clear way.
You are so against me.
I am not against you. It is just easier to talk to her in a calm manner instead of being vile back to her. She will get the wrong impression of you if you react in a harsh way.