People think they can remember, but, in reality, they can't. That's why we bother with trials and courts, to examine these 'memories' and attempt to find out the truth.
An interesting question is, was she as stoned on drugs as Brand used to be, all those years ago? This is relevant. Has she had sex with him, consensually, before the alleged rape? Was this kind of behavior normal in their relationship, a kind of hard forplay before sex? How, after all these years could one possibly find out what really happened between them?