Eternal Life by Kara Leigh Miller

A violent attack during their honeymoon left Chloe fighting for life and Trent missing. Now, Chloe returns home—alone and devastated and clinging to the hope that Trent is alive and will come back to her, but as days stretch into weeks, her optimism wears thin. And with mounting pressure for her to break the centuries old curse haunting her very existence, time is running out.
Trent finally returns, but he’s a changed man. Having endured unspeakable torture at the hands of his captors, he’s more determined than ever to ensure Chloe and the rest of his family stay safe, even if that means living on the run for eternity.
But the timer has zeroed out on Chloe’s human life, and she must break the curse if she’ll have any hope of saving her loved ones. As her enemies advance, Chloe has no choice but to face them—and not everyone will walk away alive.