Someone Like You and Lock and Key by Sarah Dessen

After being really impressed by Dessen's Just Listen I thought I would give these two a go.  I was a little disappointed with the predictability of Someone Like You in which the main character, Halley, has to rise to the challenge of providing support for her best friend Scarlett after her boyfriend dies and she becomes pregnant, and has to handle her own relationships with her mother and own boyfriend, but everything was a little superficial and never achieved the depth of Someone Like You.  Lock and Key was a little better.  Ruby lives in near poverty with her itinerant mother, moving on from place to place until she is finally abandoned and pulled out of child services to live with her ultra rich estranged sister and her husband.  Dessen follows Ruby as she struggles to cope with her change in circumstances from borderline destitute attending one of the roughest schools in the county to the new world of very rich and attending the kind of school where kids are on the fast track to being the next generation of the country's rulers