I didn’t read the entire thread, but allow me to quote my old friend Atom Smasher who said this years ago:
“When a woman is interested in you, she will move mountains to see you. Anything less is a sign of insufficient interest.”
Nothing more is needed to gauge a woman’s interest. You must emit the aura that you are a busy, no-nonsense man who has no time for fence-sitters. Nothing short of her moving mountains to see you will do.