Yep. And it is apparently the MO of date rape guys to pull a stunt on the last night before a girl leaves the island. Makes sense on several levels.
I still think there's something to the guys insisting she was drunk. I'm not saying NH wouldn't do that, just that I don't think she would on THAT night, having to get up early and leave.
I guess it does make sense on several levels. Like sleight of hand - now you see her, now you don't! :(