This would make them delusional to believe the lies they tell and a pathological liar.
Hi smilie, if you need to, draw her with a pointy mustache, tying you down to a train track. Rewriting history is usually about choosing what moments merit inclusion and focus. It can include embellishment, but most have done enough wrong over the course of an LTR, such is not strictly necessary. LBS do nearly as much history rewriting as WAS. We see it all the time. Someone wants to save the R, they tell us certain stories about their ex, they want to move on, they tell us darker stories. If a reconciliation attempt is near, suddenly those darker stories are downplayed. Yes, viewing your ex as wonderful or as the worst of villains are usually both self-delusions. No, I wouldn't call you a pathological liar. You're human. (:
Try to separate out in your mind what she says in court--a legal business matter--from what she says elsewhere. She wrote you a letter about the breakup. A very kind one, if I recall correctly.
