No not from what you wrote, but she could be. From what you wrote it sound like she could be pairanoid and have anger mangement issuses.
She may have a disorder called intencive(spelling?) explosive disorder.
Could you tell me more if you don't mind.

I would also recommend that you go to www.Bpd411.Org and read up on borderline personality disorder.

Bottom line? People treat you the way you teach them to treat you. Calling an end to the engagement and disengaging from her may be the best thing for her and you. A quick kick to the frontal lobes may provide her with the needed "oomph" to go see a doctor (or three) and get properly diagnosed and treated for whatever ails her.

If/when you have final contact with her, you may want to suggest she get her thyroid checked out too.

In the meanwhile, you should take care of yourself, and that means you would be wise to try and figure out why you were attracted to, engaged to, and abused by this woman. And proceed to make healthier choices in the future.

Best wishes.

I agree with the above that breaking up was the best thing at this time for both you and her.

When you say she recalls things you didn't say, do you mean she invents things viciously or does she really believe they happened?

I agree it doesn't sound like bipolar but delusions could point to another type of psychiatric disorder. And such vicious attacks could point to a personality disorder as already mentioned above.

Good luck to you, don't let her push you around. Illness isn't an excuse. I agree with the above that she should definitely see a doctor (or, indeed, three....)