Desert Hearts — Christine Pope

Falling for one man when you're in love with someone else must be the quickest way to complicate your life…   A stranger staggers out of the desert and collapses in Kara Swenson's Sedona home. He pleads for help, and despite her better judgment, Kara takes him in, gives him shelter and a place to stay. She doesn't anticipate the dangerous attraction she begins to feel for him -- after all, she's been secretly in love with Lance Rinehart for more years than she cares to admit. Kara, who owns a UFO-themed shop and gives UFO tours in the desert outside town, thinks she's seen it all. But when the shocking truth of the stranger's identity is revealed, she finds herself having to make a terrible choice. (Book 2 of the Sedona Trilogy)