"It's an absolutely unfortunate situation for all of the parties involved."
Wrong. Wrong. Wrong.
Rape is never equally unfortunate for the rapist as it is for the rape victim. Rape is one or more deliberate choices made against another human being not something that happens to them. If it weren't a choice, rapists wouldn't be able to pick their victims.
Neither is it equally unfortunate for those who do nothing when they see friends attacking or raping.
Friends don't let friends rape. Repeat after me. Friends don't let friends rape.