Narcissist logic

There's a former coworker who asked me for $500 years ago, then got upset when I asked her what it was for ("Why are you asking me? I thought we were friends, you don't trust me?"). At the time, she told me she'd give me more details but then just started ignoring me, until I started ignoring her in return. That was years ago, and she's spent the time since sending me self-pitying messages about how it was all a misunderstanding, each time I tell her I'm not interested in being friends.

Last month I left the company and she sends me yet another message about how we're true friends and shouldn't let misunderstandings get in the way. So I just ask her, what's her version of this "misunderstanding", she writes back without answering my question, just asking why I stopped talking to her. So I just remind her of the sequence of events andask her where she sees this "misunderstanding".

She just doesn't reply, which is fine by me, but wtf is with these narcissists trying out their lies over and over. Personally if I were in her shoes and sent that last message, I don't think I could look in the mirror knowing I tried to push a lie and it was so blatant I couldn't even explain myself. It's like these people are constantly chasing a life inside their own lies, since a waste of existence.