Arrow by Carrie Harris

Unknown threats. Dangerous liaisons. Secret extortion.
Just another day in Las Vegas.
Lara Tanaka is a bounty hunting cupid who’s done with romance. Her magic arrows make people fall in love, but she’s looking for something real. She finds it in Vincent Malone, an angel of death with a forgotten past.
When they meet pursuing the same guy, they both begin to wonder if life…and love…are worth the risk after all.