Three Wishes for Revenge: Burn in Hell, My Billionaire Ex!

From the back cover

While clearing the attic of the old family estate, a young woman named Sera finds three candles and a mechanical voice promising that each flame grants one wish. Half-skeptical, she wishes for her boyfriend Carter to walk again after the car accident that cost him his legs, and the first candle restores him. A second wish builds his startup and makes him a billionaire.

Yet on the day he promised to marry her, Carter tells her coldly that he will marry Chloe instead. Humiliated and discarded, Sera returns to the attic and lights the third candle. At home, her housekeeper Martha reveals that Chloe answered Carter's phone and that the two have been inseparable since her return; Chloe arrives with leftovers and fresh marks on her neck, and Carter, marked just the same, orders Sera to apologize.

Surrounded by dishes full of her allergens, Sera refuses, and Carter storms out with Chloe, vowing never to return. Alone, Sera weeps over seven years given to a man who never truly let Chloe go, and regrets ever loving him.