What has happen to the narrator previous group of friends?

Melinda and her closest friends attend a party with seniors and beer. At the party, Melinda feels uncomfortable and out of place. She gulps down a couple beers before walking outside for some fresh air. While outside, Melinda meets Andy Evans, an attractive senior boy. Andy begins dancing with and kissing Melinda, and Melinda is taken aback but too drunk to say anything. Andy pushes her to the ground and rapes her. In her confusion afterward, Melinda dials 911 and the police arrive at the party, but Melinda finds herself unable to tell anyone what happened. When the entire school discovers that Melinda broke up the party and got some students arrested, her friends stop speaking to her. No one knows that she was raped.