Texas Ranger Dad by Debra Clopton

Everyone in Mule Hollow can see the resemblance between former Texas Ranger Zane Cantrell and Rose Vincent's son. The same gold–flecked amber eyes. The same smile. Not that Zane is smiling. He's in shock! How could Rose have kept their child a secret from him? Rose reminds Zane that he's the one who walked away. He has to make her see he had no choice. But Rose is as prickly as the cactus jelly she makes. And that's where their hopeful son and the Mule Hollow matchmakers come marching in.