She never accused her of rape, though. She just tell it was inappropriate.
I might upset some people there, but I will speak in her defence.
You might think her reaction is excessive, but a thing many seem to ignore is that a woman in her 20, at this point, will already have several experience with a man politely asking her out and pulling a tantrum and shooting angrily at her if she says no to him. It's also the reason many women will try to make up excuse instead of simply saying she is not interested.
At some point, women will develop pavlovian reflex and be afraid of any man who ask them out they do not reciprocate if she is asked out in an environment where they perceive the man could get to have his way even if she says no. Even if those dudes are the minority (obviously) it's like playing Russian Roullette. This is why many women stress out when someone ask them out and they don't feel safe to reject the proposition.
I do not say you should not ask out a girl anymore, but if you ask out a woman you don't or barely know, for a coffee for example, do it in a public place where lots of people are around, never when you are isolated and it's just you and her. Do it in an envirnment she feel safe.