I originally thought Tibby had the worst storyline but on rereading it I realize it's actually Carmen (and Roberto et al). Looking back on the books, Carmen’s character seems the most inconsistent She also has no high school boyfriend/love interest to revive in this book (guess Win didn’t make the cut… he gets a one sentence mention). There was a weird change to her character in book 2 or 3 and again in 4 (not the big depression going to college change… like the cheating in Physics change) .
I liked Bee’s storyline the most in this book. Overall though I related to none of the characters. Really disappointing end to a series that I will remember fondly from my teen years (and never reread again).