How to Choose a Gaiian in Seven Days by Wendy Sparrow

When Creythur Darfothahar sees Earthen Dr. Marigold Clemons take on a swarm of Pilfers in a dark Bogartan alley, the Gaiian is charmed—and bonded.

As a xenobotanist, Mari views the insectoid race attacking a cabbagey life-form as a personal affront. Not today! Not when a brave and bold xenobotanist can save the day…with a lot of help from a hot Gaiian who arrives to fight alongside her.
And, so it begins…eventually. It takes Crey six months to arrange a week-long courtship with the xenobotanist, and she’s unaware they’ve bonded. Finally—it’s time for Crey to tell Mari and convince her to accept him.
And, the rough outpost is immediately attacked by the Gaiians’ sworn enemies. Crey and Mari escape toward the Gaiians’ dark system with their enemies in pursuit. Love on the run has never been this green or sexy, but it’s also never been this Gaiian.