The Love Hypothesis by Ali Hazelwood

Adam. And he was tall, though not as tall as Adam. And he
was handsome, though . . . yeah. Not as handsome as Adam.
“What do you do, then? Are you a research fellow?”
“Um, I actually—”
“She’s a student,” Adam said.
Dr. Benton’s eyes widened.
“A graduate student,” Adam clarified. There was a hint of
warning in his tone, like he really wanted Dr. Benton to drop
the subject.
Dr. Benton, naturally, did not. “Your graduate student?”
Adam frowned. “No, of course she’s not my—”
This was the perfect opening. “Actually, Dr. Benton, I work
with Dr. Aslan.” Maybe this meeting was still salvageable.
“You probably don’t recognize my name, but we’ve
corresponded. We’re supposed to meet today. I’m the student
who’s working on the pancreatic cancer biomarkers. The one
who asked to come work in your lab for a year.”
Dr. Benton’s eyes widened even more, and he muttered
something that sounded a lot like “What the hell?” Then his
face stretched into a wide, openmouthed grin. “Adam, you
absolute ass. You didn’t even tell me.”
“I didn’t know,” Adam muttered. His gaze was fixed on
Olive.
“How could you not know that your girlfriend—”
“I didn’t tell Adam, because I didn’t know you two were
friends,” Olive interjected. And then she thought that maybe it
wasn’t quite believable. If Olive really were Adam’s girlfriend,
he’d have told her about his friends. Since, in a shocking plot
twist, he did appear to have at least one.