One Moment by Becky Hunter

The day Scarlett dies should have been one of the most important of her life. It doesn't feel fair that she is dead before she had a chance to fulfill her dreams, before she even turned thirty. And now she's still...here...somehow, watching the ripple effect of her death on the lives of those she loved the most. But her journey is not over, and as she finds herself pulled into reliving her most defining memories, she starts to realize that maybe she didn't have everything quite as figured out as she once thought.

Evie cannot contemplate her life without Scarlett, and she certainly cannot forgive Nate, the man she blames for Scarlett’s death. But Nate keeps popping up when she least expects him to, catapulting Evie’s life in directions she’d never let herself imagine possible--ways, perhaps, that even those closest to her had long since given up on.