Lucas (Must Love Danger Book 5) by Emily Jane Trent

Navy SEAL Lucas Parker is assigned to bodyguard a pop singer on tour, only to discover that she is a flame from his past. What starts as infatuation quickly becomes a much deeper emotion. Lucas must save his true love from the clutches of a ruthless stalker, if he has any chance of a happily-ever-after. Haylee Nichols makes her dream of stardom come true, but her sick 5-year-old son is more important to her. She chooses motherhood over her career but must finish her last tour. Danger looms when a celebrity stalker might not let her live to return home. A medically trained Navy SEAL is her protector, and his kindness captures her heart. But she must reach deep for the strength to fight off her oppressor before she can embrace the future she wants.