The start of Melinda's freshman year

So far my reactions on the book are a little of sad because I feel were she is coming from and its a little anger because the kids in this book are mean. Melinda had so many friends before she hit high school now all her friends are treating her mean and I don't know why. Then Melinda has no real connection with her family and its sad that she communicates with her mom through notes and hides in her room when her dad comes home. The main characters are Melinda and Heather. Melinda is a female, about fifteen, Caucasian, quiet, likes to be alone. Heather is a female, bout fifteen, Caucasian, quiet but more outgoing than Melinda, and wants to fit in any were, and just moved there. I don't know were they live yet. The problem is that Melinda has no friends other than Heather and she is very quiet. She had a incident last summer but don't know what happened yet.
We are at page 40 so far