The Second Heart by EA Kafkalas

The Second Heart Is love truly universal? Major Kate Winston is a decorated officer with a promising career until she wakes up naked in the arms a strange woman with no memory of how she got there. Alexia is from another planet sent by the elders to kill Major Winston to put off the foreseen destruction of their planet by Earth's mistakes. From the backwoods of Pennsylvania to New York City to Alexia's home world, the novel weaves a tale of emotional intrigue as two women from different words struggle with their desires, and life and death decisions.