Romance Book hero and heroine stuck in cabin together

I read this book awhile ago and now can’t remember the title. It was a romance novel and the hero’s name was Mackenzie (MAC for short). He finds out at the end he has a daughter named Kayla. The book is about him going to a cabin and the heroine already being there. As a special forces type guy he believes she is sent there to trap and kill him. They then get trapped at the cabin. Does this book sound familiar to anyone? Any help would be appreciated. Thanks!