Enemy Mine — Christine Pope

She's the enemy's biggest threat. But he just might be the savior they all need. Although she inherited her mother's psychic gifts, Taryn Oliver didn't foresee the consequences of possessing those special powers. Now, as the primary target of the ruthless aliens who are plotting humanity's enslavement, Taryn has to find a way to thwart their plans. After meeting the mysterious, half-alien Lir Gideon, she fights the attraction she feels for him, understanding that the very future of humanity could be at stake. What she doesn't realize is that her connection with Gideon may be the key to saving not only everyone she loves, but the entire planet as well.