Getting "shot down" is a state of mind.

I prefer to feel sorry that a woman has missed out on an
incredible experience... not that I was "shot down".

And if a woman is actually RUDE to you, just laugh. Say
"Oh, sorry... you looked like you might be an interesting
person, but I was obviously mistaken."

Feel bad for her, and move on.

In other words, keep up the great work.