She's in no way entitled to immediate forgiveness.1 Person does something awful.
2 They get punished for doing something awful.
2 Person apologizes for doing something awful.
3 "Fuck her and her apology"
So them getting punished and apologizing is clearly not enough. So - "what more do you want?"
If she was sincere, she'd disappear for a period of time while having some legitimate introspection. Not immediately going online in an attempt to garner sympathy and get her job back. She's a selfish asshole. She can fuck right off.