The King by Jessika Klide

Once upon a time, Cindy Lovett lived a wonderful fairy tale life. But after her father passed away, she suffered years of abuse, enslaved by her wicked stepmother.

Hungering for freedom, Cindy plans to run away. So when her mean stepsisters plan a party for her twenty-first birthday she uses it to make her escape.
When Aiden Braswell blows into the parking lot like a bat out of hell, Cindy assumes he’s the Uber she’s called. Rushing to his car, hurling herself into his back seat, urging him with, “Hurry! Get me out of here!”—she inadvertently triggers his Navy SEAL training, and instead of telling her she’s made a mistake, he whisks her away.
What ensues next is a magical night straight out of a fairytale romance—but the similarity ends there. In this modern-day retelling of Cinderella’s story, when dawn breaks, Cindy learns she must choose between love and marriage.