You’ve Got Aliens by Fiona Roarke

Librarian and aspiring journalist Juliana Masters has a mystery to solve: Who am I? Armed with the truth about her past, she can leave her humdrum present behind and get on with her future. She just needs to complete one lucrative investigative writing assignment and she’ll be on her way. All she has to do is prove aliens live and work out of a secret facility based under the Big Bang Truck Stop. No problem. Getting her socks knocked off by the Fearless Leader isn’t part of the plan.
Diesel Grey worked for years to achieve his goal of heading up the family business in Alienn, Arkansas. Mission accomplished, but being Fearless Leader of a galactic way station comes with a lot more headaches than anticipated. It’s hard to consider the shockingly well-informed writer a headache, though, especially when she makes him ache in all the right places.
If he’s not careful, he’ll give her everything she needs to blow his family’s cover and expose to the human world that aliens do walk among them.

All he really wants to do is sweep her up in his arms and never let her go.
If only his trigger-happy brother would stop erasing her memories …