I appreciate the advice everyone, even AlexDP.
Notes:
0) Regarding those who are concerned I might get hurt (chuckle) - I'm being honest when I say that at 41 you simply can't fall for a 20 year old the same way as say a 30 year old. And not taking them seriously is the key to maintaining their interest! That said, I do love this girl and have not ruled her out as a (FAR) future wife. I've dated young hot women for up to 5 years before - you have to ride the wave of their emotions and endure long periods of not hearing from them, but you get your hooks in deeper.
1) Other plates: I made out with that bartender tonight (age 29 - third visit to her bar). And she lives with a guy but told me she's unhappy. You are only as good as your second best girl.
2) Calling her a stripper is almost an insult because she's so much prettier and sweeter than 99% of strippers. I'm not pretending all strippers are good.
3) Nothing says high interest like getting a 4 part text message which I just got from the stripper. She agreed to a bikini model photoshoot that we've planned for weeks (yes, I'll publish them!).
4) When she and I spoke - after 3 weeks of mutual NC - one of us had to be madder - one of us had to have blown off the other. A chicken laid an egg on the top of a roof and it had to roll one way or the other. She was the more emotional one, raising her voice, and yelling (the way I wanted to in my mind but was too smart to). I didn't apologize, but played the role of covering my tracks "Sorry baby, you know you're the only one!".
5) When I ask this girl out I feel the excitement of having my team in the Super Bowl or World Series - it's either the biggest win ever or the worst loss ever. I want women who I love enough to make me feel that way. That means risking being hurt. It beats a .500 season.
6) I've tried to document my rise (and fall) with the stripper for those who encounter similar women.
7) Her being 20 is much more of a factor than her being a stripper.
8) If you want to know if a girl is still interested - simply ask them (especially when they are yelling, for example):
*Her: (loudly) So you couldn't even TEXT me for THREE WEEKS?
*Her: (loudly) What is WRONG with you!??
*Me: (quietly) Are we still together?
*Her: (quietly) I hope so...
This was my main indication, based on her subconcious reaction. If they aren't interested and you ask "Should we end it?" (et al) they'll say ".... I don't know...". Prosecuters use this when they ask "Did you kill your wife?" and anything besides an emotionless, simple"no" indicates "yes".