Err, Cain is married. You think trying to “get a little” from someone other than his wife is normal behavior for a married man?
Yes, I think it is relatively normal and human it might not be common in some circles but others it surly is, just look at how many in the clergy has fallen, seems like most of the bigshot teleevangelists fall minto this group not to mention captains of industry and lots of polititico are in this group, the point is he stopped when asked and he drove her right home when asked, to try to get a little is surly normal
The whole story doesn’t seem coherent. If he had drunk himself to the point of the silliness she accuses him of, he probably wouldn’t have been able to “drive her home” (though he could have paid for her cab). She might be a compulsive liar for all we know, a liar that makes up things that don’t even try to make sense, and even when the truth would have served her better.