Scythebound

Ashlynn Fowler has spent the decades of her afterlife in service to a man who stole her autonomy. That is, until he decides to marry her off to a Reaper as a ploy to take advantage of an alliance with Death himself. Kastor Wilde prides himself on never questioning his orders, until his biggest responsibility yet is handed to him in the form of a mouthy, contrarian, red-head who decides she hates him before his vows have left his lips.
When Ashlynn starts stealing souls from beneath Kastor's nose, he's tasked with hunting her down and dealing out her punishment. What he doesn't lnow is the thief has been his wife all along.