I'd Tell You I Love You, But Then I'd Have to Kill You by Danah Alasmri

The Gallagher Academy for Exceptional Young Women is a fairly typical all-girls school—that is, if every school teaches advanced martial arts in PE, chemistry always consists of the latest in chemical warfare, and everyone breaks CIA codes for extra credit in computer class. So in truth, while the Gallagher Academy might say it’s a school for geniuses, what they really mean is spies. But what happens when a Gallagher Girl falls for a boy who doesn’t have a name?

Cammie Morgan may be fluent in fourteen languages and is very capable of killing a man with a few pieces of uncooked spaghetti, but the Gallagher Academy hasn't prepared her for what to do when she meets an ordinary boy who thinks she’s an ordinary girl. Sure, she can tap his phone, hack into his computer, and track him through a mall without him ever being the wiser, but can she have a regular relationship with a regular boy who can never know the truth about her? Cammie may be an elite spy in training, but in her sophomore year, she’s doing something riskier than ever—she’s falling in love.