What happened to you is part of a structure of behavior that is only just now being openly addressed. Amos Guiora calls it "Bystanders" but it's basically accessories to crimes that to date, haven't been successfully prosecuted at all. For example, Lou Anna Simon, the MSU President, who called the FBI to protect the school and Larry Nassar when so many gymnasts came forward stating he had sexually assaulted them - she was found "not guilty." There is still a controversy at Penn State where the non-actions and permissive behavior of Joe Paterno permitted and supported the child sexual abuse of Jerry Sandusky for decades. Many thousands of Penn State alums believe Paterno did nothing wrong. So, your story is about NSA. The group knew about Rob and maybe the individuals might have thought the incident was consensual, but I truly doubt it. People like Rob don't ever do this to just one person. Their friends know they do it too: Bystanders.