Wicked Fire by Marie Johnston

His thoughts are less than angelic around her….

Jagger Hancock is a fearsome warrior for the angelic realm, slaying demons left and right on Earth and protecting the human race. But when a powerful senator is murdered, he’s reduced to acting as a bodyguard for the grieving daughter. Too bad she’s the same female who ruined his one and only chance at happiness.
Felicia Montclaire looks as angelic as the rest of her kind, but she hides her scars well. Yet the male who gave them to her is not just after her again, but seeking conquest over the entire realm too. While her life goes up in flames once more, the last thing she needs is a cranky bodyguard…even if he’s the only one who can keep her alive.
Jagger and Felicia might not survive each other, much less the constant attacks from their enemies. But when danger drives them back to the angelic realm, they’ll discover their past is waiting for them—and it’s far more dangerous than anything on Earth.