Manager who fired then rehired me said she doesn’t remember me but I heard it through the grapevine she most definitely does remember me?

Why would she lie to me that she doesn’t remember me but tell other employees below her/equal to me, that she remembers me?

Updates
11 mo
I may have found out but I’m gonna keep my mouth shut because y’all are right.. it doesn’t really matter. I was just wondering why..
Manager who fired then rehired me said she doesn’t remember me but I heard it through the grapevine she most definitely does remember me?
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