Eternal Soul by G. Bailey, CoraLee June

I’m a murderer. A Killer. I’ve single-handedly slaughtered thousands without a second thought—and I don’t remember any of it.

I’m the Goddess of Death, given a second chance at redemption as a human. To right the wrongs of my past, I’ll have to learn about the person I was and the men I once loved.
Because my enemies are back with a vengeance, and I’m going to have to do what I do best:
Kill them.