Honestly I want it to be a crime to make fake rape accusations. Like I'm so done with it.
think about it, though, this makes court a "if we win, you lose" situation
what I mean is that it's hard to prove a rape, but just because it can't be proven doesn't mean that it never happened. this is like saying "this guy robbed me!" even though he could've, but there was no evidence to dictate so.
edit: though I'm not saying that you shouldn't be charged if it's a fake accusation. If the girl claims she was "raped" ten minutes ago, when she was really just studying with someone, then she should be charged for it.