/feels/ - Advice & Venting

So the following just happened today.

Some chick keeps coming onto my SO online, playing off his insults and being flirty. (he doesn't like her)

I've never spoken to her and she was extremely hostile to me: once my SO insulted her from our shared account and she assumed it was ME insulting her and not the person with a history of making fun of her. She told me she doesn't see me as human and kept assuming every single negative thing said towards her was authored by ME. But everything else? Must be the SO. Once again, we literally have not interacted before that moment.

This is all the while she has a public "e-bf" that she makes lovey-dovey posts with and him kinda tolerating public disrespect from her as well.

So lately her stalking and flirting kinda intensified and she kept trying to contact SO, add him as friends.
Today she sent him a DM:
- Why are you ignoring me
- Apologize.
- Sorry.
- Apologize to (my name)
- Who's that?
- That's my wife.
- My condolences (or "I'm so sorry about that" for a funnier translation)
- We've been together for a long time.
- She really should find someone better. Fuck off and take your bitch with you, poorfag. (proceeds to make a meltdown public post and go offline)

What the fuck is this behavior??? (i mean i think i already know but) This schizo is like 30. The scariest part is that it sounds outlandish and it makes me realize all the more how fucked up this is.

Do nonas have any other crazy bitch stories as well?