Done with You by Whitley Cox

She already knows all of his secrets, and that’s what terrifies him the most.

Looking for one night to forget her problems, Oona Young uses an alias and follows a handsome stranger back to his hotel room. Their time together is brief but passionate, and she leaves in the morning, believing she’ll never see him again. Only when her newest patient is the same man who’s seen all of her tattoos, do things get awkward. She’s read his file and knows what he’s dealing with. Ethically, she must refuse to treat him.
Forced into therapy before he can return to active duty as a police officer, Aiden Lassiter has been on the waitlist to see Dr. Young for months. So imagine his frustration and shock when the woman, who hasn’t left his thoughts since that wild night he used a fake name, is sitting in the therapist’s chair and refuses to treat him.
Things can’t get any worse, right?

Oh, but they can and certainly do when he finally works up the courage to visit his estranged brother and Oona ends up beside him on the plane. Little do either of them know they’re in for one interesting Christmas.