Why do you think Melinda never told anyone about what happened at the party?

At an end of summer party, Melinda was raped by a senior. Dazed and drunk, she called the police but left before they arrived. Now everyone thinks she called the police to break up the party, they blame her, and they have cut her off.... completely... everyone is mad at her, including her group of good friends from middle school. Melinda has told no one, not even her parents. She carries the burden of this alone, confused and inwardly tortured.