My mother called me a whore what should I do?

I'm sick of her... I have to work, then clean, cook and do chores while she sits on her ass all days, drinks and sleeps around. Once in anger I called her a ''whore'' for her habits. She replied that I was a whore too, because I did everything she said. ''Even the whore has her own whore'' she said.
My mother called me a whore what should I do?
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