Did she turn heel suddenly, or where there hints/signs of this during the relationship?*
As a Black man living in this country, I'd look into getting ahead of this and trying to safeguard against your freedom. If she's talking crazy like this, can't rule out what she could say, do, or falsely accuse you of.
Shaking her isn't the issue, getting entangled by the legal system or possibly being harmed by her is the issue.
*Looking back, if she showed any signs that she was capable of this while you were together, lesson learned and choose better next time.
Pay attention to what this man typed.
You need to document the harassment. Make print outs and save any communication where she contacts you and you ask her to leave you alone.
Like everything.
You need overwhelming evidence if shyt gets ugly.
She sounds like she is potentially unstable and capable of going off on the deep end and putting false charges on you if she hits her breaking point.
if she lies on you, you will be fukked and it will cost you time and money to defend yourself, so at least have your evidence ready if it gets bad.
My younger cousin had a similar situation and the bytch said he assaulted and abused her when he kept ignoring her.
They picked him up and put him in jail on a Friday when Monday was a holiday.
Had him in jail until Tuesday.
Long story short, it was a bogus charge but he had to pay a lawyer a grip to defend himself.
Had him on a ring doorbell at his homies crib playing 2k 60 miles away from where she said he beat her up at.
Be careful and protect yourself and document her harassing you.