4 guys had, what they assumed, was a private conversation on FaceBook. The conversation involved remarks of a sexual nature about the young woman in question, the type of remarks that most guys their age have made.
Screenshots of the conversation were sent to the young woman anonymously, she was understandably offended. She confronted one of them threatening to go public with their names. The 4 guys wrote an apology. The 4 guys threatened legal action if she went public.
She went public. The comments were crude, they were not threatening.