Sydney Rewound. The Second Chance Series, #3

Sydney Bennett's life is anything but calm. She's a high-school teacher and the single parent of a teenager. An unexpected event shakes her pressured but predictable routine. As she tries to regain her balance, she's drawn to a secret that even her daughter doesn't know. Nor do her three best friends. Her private quest leads her to the beach town where she grew up, and her strained relationship with her mother.
The last thing she expects is to cross paths with the man who once upended her life, a man she's never forgotten. As Sydney's past collides with her present, she's forced to reveal her secrets, and encounters the surprising power of letting go.