Mated to the Alien Rebel by Molly Rowland

Katherine Hodges is a tough-as-nails cop who only cares about solving her latest case. She gave up on romance a long time ago. Besides, she hasn’t had time for a sit-down dinner in three months. Mr. Right would have to fall out of the sky in front of her.
She can’t believe it when he does.
Drekrik, a fierce alien warrior, arrives on Earth with one goal: to recover the missing beacon without being detected. Then Katherine shows up, and the determined Earth woman complicates everything.
He steals her out of necessity, not lust, but he can’t deny the feelings that grow between them. And Katherine finds the romance that always seemed out of her reach is more enticing than she ever imagined. Will they choose duty? Or be overwhelmed by their passion?