If your intent is good, and you aren't using pickup lines, pass her details to contact you and see where it goes.
What guys will learn as they go and grow through it is that not all women are high quality or class either.
Regret flows both ways. Know your value and be confident and have a thick skin. There are books on how and why women test men, there are reasons and rationals for doing it.
I used to travel a lot and was at one of my favorite Italian Bar/Restaurants eating and doing my thing. Laughing it up with the staff. Two way to young for me women (and I was in a committed relationship at the time with my soon to be wife), asked questions about me to the bartender and moved over to talk to me.
You do you, and if that isn't good enough then look at it this way. She saved you a lot of heartache later.