If she wants people to see she's genuine, she needs to issue an apology much more profound than this. She needs to write something up on tumblr, like a damn ESSAY apologizing for everything she's done. Not just this last spat. Then after the apology, she needs to make the efforts to counteract those things by being a genuinely good person. Name names, apologize to people personally. Send them a letter, something....
I would be very impressed.
Then on top of that, if she can keep on her behavior, she may have a chance to rebound on my book, but that's only if she can manage to stay genuine for at LEAST a few months. If she wants to get a quick one-liner in, fine. She used to be the queen of one liners. I still scream @ these because they were funny lil jabs that weren't offensive in a way her slurs are.