What percentage of all the amp women who you have met in your life do you feel actually care about you? And how do they demonstrate this caring?
The criteria here will no doubt vary from person to person. But here are some I use that seem pretty sure-fire:
1. Does she chat with you obsessively? [Including getting worried when you don't immediately respond and frequently asking for your picture.]
2. Does she fuck you for free outside the spa? Will she commute on a bus over an hour (there and back) out of her own pocket to fuck you for free?
3. Does she buy you expensive gifts w/o you asking or even making any material demands on you?
4. Does she regularly tell you she loves you?
If the answer to all four is "Yes", then she cares about you. I have seen that behavior combo, but only out of one [legit] spa girl, out of over 100.
Back in the day, when I dated civvies, they way to tell if they really liked you was: would they offer to pay for stuff (like dinner or drinks)? That, and a certain strained face they made (which I've seen on multiple girls, but never seen described online), was a tell-tale sign that I could get them into bed that night. Or....if they offered to give you a BJ in the bushes.