Hey Charlie, can you please check my book Bounded By Stars. Only continue to read if you like it. And I apologise for the disturbance.
Here's a summary.
Two soulmates, Rosalie and Liam, find themselves at a crossroads in the conspiracy of a vengeful god. It's either them or the world and the existence of their beloved ones.
Their only problem is that they have to decide before one of them vanishes into dust.