His Human Subject by Stella Rising

Alexis Miller has resisted the invaders since they arrived, first as a fighter pilot and then as the leader of a political movement opposing their rule, and when she leads a group of colonists to another world the last thing she wants is a meddling Dominar official looking over her shoulder.
Despite her reluctance to accept his help, however, Alexis soon finds herself enthralled by the handsome alien sent to assist the new colony. But can she risk allowing herself to fall in love?