Pandora Box: A Buffy the Vampire Slayer Fanfic

It's about Willow resurrecting Buffy wrong and it's a younger Buffy from Season 1 that is exchanged from the episode 'Nightmares.' She is a Vampire and has no idea how she got into the future, but she knows that she is stuck permanently and stuck as a Vamp forever after future Willow tells her how it happened. Willow tried spells to send her back but she never could. Buffy can't be changed human either because Willow also tried to repent for her mistakes by causing her to shift out of a demon, only Billy could stop it and since Lucky nineteen took over Sunny Dale in her time and killed her friends, everything changed in the alternate universe even D'Hoffryn's.
She does fall for Spike but eventually goes a little hungry, losing her soul. Spike/her friends has to follow her to L.A. where she's trying to take out Angel's soul. Darla and Angel are shocked as they are dealing with the pregnancy of Connor and the Vampire Hunter. (I will start this one as well then, you can continue before writing the SEQUEL all on your own).

Note the "I thought I was dead" part. Buffy's Vamp face will be exactly like that at all times.

In colloboration with @CherrySodaFan.