Woman: You already did me.
Man: That’s what she said.
It has been taken from the TV show "The Office": https://getyarn.io/yarn-clip/66c0aa66-00e0-4512-8845-52abaac9ffb0
Why she is using Past Simple Tense whereas "Already" refers to Present Perfect Tense? Would there be a mistake if she said "You have already done me".