Could you see yourself building a life with someone like this? What about when you have kids, and she decides she wants to go camping with someone else?
They don't think about anyone other than themselves. When they love bomb, they are usually doing it for themselves (to make sure you don't abandon them).
The more concerning thing from your post is that you consider yourself slightly NPD. If this is true, focus on healing from that so that you don't have more of these drama-filled girls down the line. I too threatened to smear my ex partner (out of fear that's what she would do to me) so I can definitely sympathise. Can I suggest that perhaps you may not be NPD, but reacting from trauma / abused state.
Grumpy, i read your backposts and it looks as tho we dated the same woman,

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2 things i cant wrap my head around. I mean i already know the answers but the shock is fresh, even after 4 weeks.
1. How she could do such a complete 180.
The day b4 she broke up with me she said this- 'if this keeps working out ill give you the family, the love, and the companionship you desire.'
The next day im suddenly some bastard who she fears is gonna stalk her. What?
2. How she could lie about her image for so long.
Everything she made herself out to be for the last year (b4 we started dating) is so inconsitant with what she showed me at the end. At the end she had no empathy, no integrity, and turned out to be a compulsive liar. So the whole year before that of building herself up, was it an intentional con, or that they idealize even themselves without ever learning from their experiences?
I think a mix of both with mine.
And no im not a textbook npd nor even remotely close. How much heartbreak im suffering might be a good arguement for it, and how similarly we all have suffered here. I think these women somehow know to pick the same men for the thing they lack in themselves the most- a soul.