The Shopkeeper's Wife - Book One - Ch. 1-4

A woman leaves her husband amidst the end of their world. All she needed was for him to love her, but he became consumed by a violent, quixotic quest to save what had been doomed long ago.

The world died.

The woman lived.

And as she awakened, stardust and darkness swirling around her, she was brought to a lamppost, adrift in the cosmos, and given the opportunity to search a fractured universe for the man she needed to be alive. Otherwise, she felt, she had damned him personally to whatever eldritch hunger had taken everything from her.