Reasons a former frie d that believed lies about you and cut you out of their life would block. You after 3 years no contact?

In my case, she (work colleague) believed lies about me, ended friendship, the sane lies got me fired, then 6 months after I'm. Gone she blocks me on only Facebook, not IG,

Then a year and a half later I. Get a job in the same. Building and she unblocks me (she knows I'm back)

Then after another year (I didn't speak Or go. Near her) she blocks me again not only on FB but also IG,

I'm not bothering her, why block me?
Reasons a former frie d that believed lies about you and cut you out of their life would block. You after 3 years no contact?
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