The Fallen and The Forgotten. Fallen Angels, #1

Sophia Rosaline Edwards thought annual camp would be two weeks of drill, first aid lessons, and trying to survive the chaos of the Army Cadets. Instead, it becomes the beginning of a war she was never meant to remember. When a mysterious boy named Matt Gregory claims to be a fallen angel, Sophia dismisses it as madness. But after a brutal attack by creatures known as the Outcasts, impossible truths begin to unravel.
Angels walk among humans, demons wear familiar faces, and Sophia is far more than an ordinary seventeen-year-old cadet. Haunted by visions of lives she has never lived, Sophia discovers that she has been reborn every seventeen years, doomed to fall in love with the same immortal angel only to lose him again and again. Across centuries-through plague-ridden villages, burning manors, war-torn cities, and forgotten kingdoms-their love has endured, but a divine curse has kept them apart.
Now the cycle is reaching its end. As the Outcasts gather for one final assault and Heaven's balance begins to fracture, Sophia learns she is the last incarnation-the one soul capable of breaking the curse or destroying the world trying to save her. Torn between the light of the angel who remembers every lifetime and the darkness that promises to end the pain forever, she must choose who to trust before time runs out.
Epic, emotional, and laced with danger, The Fallen and the Forgotten is a sweeping fantasy romance about eternal love, forgotten memories, and the devastating price of immortality.