At Whit's End by Bailey Hannah

A single mother, overwhelmed by her rebellious son's behavior, finds an unlikely ally in a kind-hearted cowboy. This spicy romance, by the author of 'Seeing Red' and 'Change of Hart', sees Whitney Hart, a struggling single mom, enlist her sister's help to keep an eye on her son, Jonas, over the summer. Enter Colt, a Wells Ranch cowboy tasked with keeping Jonas occupied. As Colt becomes a mentor and role model for Jonas, he and Whitney develop a friendship that sparks into something more. However, Whitney's insecurities and trust issues cause her to pull away. Through miscommunications and understanding, they learn that sometimes, one must be broken to become whole, and there's no single way to create a family.