Hearts on Fire — Christine Kersey

Arwen Butler has no time for love -- she's too busy focusing on her new career as a therapist. But when she joins a gym and hot firefighter Tyler Reed becomes her personal trainer, she may have to rethink her priorities. After losing the woman he loves, Tyler is determined to protect his crushed heart by never falling in love again. Then he meets beautiful and confident Arwen. Though drawn to her, he desperately fights his attraction. When Arwen is thrust into a deadly situation, Tyler will have to choose -- overcome his resistance to love or keep his heart locked up for good.