I prefer to hear "Baby It's Cold Outside" not as a date-rape carol, but as a carol of holiday flirting. A clear unambiguous "no" is always a clear unambiguous "no", but a chorus of "I really should go" can be interpreted as "I'm supposed to be leaving, but I'm amenable to being persuaded to stay." Human behavior is complex and convoluted.

I remember Mom and Dad singing this to each other at Christmas, in the tone and character that one might expect from a long-married couple. That might influence the way I interpret it today, I readily agree.

Don't get me wrong, I don't want to sound like I'm dismissive of the date-rape interpretation. I'm just observing that there are other interpretations, and I prefer to view it through the lens of a more positive and fun interpretation. :)