Behind His Back (Love Stories For Young Adults #39)
Diane Schwemm

Fran spent day after day hopelessly crushing on a hot guy at the Art Institute. But when she makes a love connection with cute and funny Toby, her crush is buried away . . . until she meets Toby's brother Marshallwho
happens to be the cutie from the Art Institute! Fran really likes Toby, but her crush on Marshall is getting more and more major by the secondand Marshall seems to feel the same way. . .