Soulshifter. Sunwalker Saga: Soulshifter Trilogy, #3

There's nothing like having your memory wiped by an ancient magical spell, or having two men fighting over you. Still, Zip is mostly focused on one thing: getting out of her human body and back to her djinn clan. There's just one problem: it's never been done before. With her memory of him gone, the only thing Mick wants is to remind Zip of how amazing they were together. Unfortunately he's got competition in the suave, mysterious Ian Chambers.
But Ian has his own agenda and Mick is convinced it's a deadly one.