for My Worst Best Friend by Dyan Sheldon
Gracie and Savannah are best friends —and utterly unalike. Savannah is beautiful, outrageous, and irresistible to the opposite sex. Gracie is shy, smart, and would rather be studying lizards than meeting boys. Still, they’ve made a surprisingly great team, and (until now) it seemed as if nothing could come between them. But lately, Savannah’s talent for lying and manipulating is becoming harder to ignore. She’s fallen head over heels for an elusive college boy, and Gracie can’t help wondering: is her friend as confident as she seems? When Savannah gets between Gracie and her crush, the line separating best friend from worst friend is crossed.