Alien Commander's Bride (Draconians #1) by Scarlett Grove

This story was strangely depressing. The world described is almost apocalyptic and aliens now hold all the wealth and power. The humans below scramble to live with mob bosses controlling all the alien technology. This is where Lexi finds herself and sacrificing herself for her sister. Nash, who bought his mate from earth, tries to convince Lexi that they will be good together. Lexi could believe it could be true, but her thoughts are on her sister and her predicament. Nash does not know how to make Lexi happy, but it does try. Once he understands that her family is important and that the illegal alien technology is responsible, thing finally start to work out. This story is well written, but the ending kind of leaves you hanging.