Angel and Fire by Florence Whalley

"In this timeless novel, Billie McLean – a girl stuck in the tragedy of murdering her own parents – is walking home one rainy afternoon when she meets Hailem Denis, a tall, red-haired, green-eyed stranger who is all too eager to get her into his car. Hailem, on the other hand – an immortal man who dislikes the title ""angel"" but can’t dispute that it best describes what he is – is living a life of pain and torment when he stumbles across this enigmatic girl who bewilders him from first sight. Her aura is wrong. From the moment they meet, the two tumble into an unexpected attraction that shakily balances the fine line of secrets and half-truths, mysteries and mistakes, and, above all, lust and love. When Billie’s secret is loosed and Hailem discovers that she carries an uncanny ability to set objects afire, he spills his own secret: He and his family are a band of immortal angels born over 35,000 years ago. Except Hailem’s secrets don’t end there, and when Billie learns the truth, the unlikely and unsteady love between an angel and a fire-lighter is put to the test. Will Hailem be able to make up for the mistakes that come with a broken heart? Or will the truth send everything up in smoke? After all, even an angel can burn."