Ha, I’m so used to being in the trad publishing trenches that I was trying to figure out how synopsis was used in this context for a bit.
Anyway Muddy, you’ve been so kind as to give detailed feedback to others, I wanted to offer for you.
Title:
Vale... is not a vampire
Synopsis:
Vale Bryce is a hunter because her dad wants her to be one. She is a loner because all hunters are. She is a drifter because that is how hunters find their jobs.
Those are lies. Vale is none of those things. All of her is a lie, because those lies are the only thing keeping her alive. Until one day she slips up. A single moment of truth ruins it all, awakening a longing for a life that is no longer built on things she isn’t.
Vale has to go back to lying. She has to. They will kill her if she doesn’t. But the truth is too addicting. Vale is not a vampire. That is a lie. That is how she will die.
Yet maybe... dying happy is better than dying a lie?
So first off, I love the name of the character. It's not one I've heard before or often, but feels grounded. You've set boundaries in the world and started to build expectations.
The second paragraph starts off by using the word 'lie' two times in one sentence. Its a little quick, and I'd maybe drop the second "All of her is a lie" and just connect "Vale is none of those things, because..." just to nix a bit of repetition and keep new information coming at the audience. I like the rest of the paragraph overall, it is sharp and declarative. To add to it, I'd almost shorten the "for a life that is no longer built not" to just "for a life not built on..."
The third paragraph is quick and snappy, though I think it might do to give the audience just a momentary glimpse behind the curtain to explain what the threat is, since we don't know anything else about the story's setting. Is the 'they' other hunters? Vampires? Her father? Truth manifest? You might also want to use the word 'addictive' rather than 'addicting'. The rhyme at the end is cute, and I think any synopsis should have room for a little whimsy.
The last paragraph, while short and sweet, kind of repeats the same refrain of the previous paragraph, just quicker and with less motivation detail. I almost wish we had just a skosh more information about what the truth buys Vale that she's be willing to die for. Happiness is so subjective and ephemeral for everyone. Is she looking to make a friend? Is she just desperate to escape the complications of hunting and vampires and killing therein? Or is she just happy to be selfish for once?
Overall, I really like it. My criticality of details aside, I don't think there is anything actually dealbreaking or wrong with any of it, I just wanted to be thorough and pointed out what I saw each paragraph doing. Its got a good refrain, and you nail the basics of the character and her scope within it. Hope to see it up soon!