Fantasy book mixing dragon, monsters and humans, with a romance

Dakota Jones is a Demon Hunter. Under the orders of her cold and distant father, she fights evil day and night with her team, who are also her friends. However, his next investigation will turn his world upside down. His meeting with Eldrekki, a man as beautiful as he is mysterious, will modify both his past and his future. Dakota knew she was different, unique, she will finally discover why and the answers may not please her.