Lie to Me by Natasha Preston

At nineteen, Savannah Dean escaped her family, leaving behind a note and the people who caused her so much pain.

Now, she lives on her own and keeps to herself.
At nineteen, Kent Lawson’s girlfriend betrayed him, leaving him behind with a broken heart and a whole lot of mistrust in women.
Now, he lives on his own and shares himself with nearly every pretty thing that walks by but only for one night.

When Savannah and Kent meet, they can’t stand each other.
Kent knows she’s hiding something, and he despises liars.
And Savannah has nothing but secrets.