DMSI 1.0 - 3.3.2 Dying for MSI

[Shannon]

Women you don't know will almost never try to "rub things in your face" because they don't know you. That would be vindictive behavior that requires a good reason for it. You will almost never see "rub it in your face" unless she is your ex. 99% of the time, she is signalling you that this is what she wants to do with you, but she is limited by this guy who she is "allowed" to do these things with, so if you want it, come and get it, but she's not yet willing to break ranks in front of her boyfriend/husband/etc.

That's what it means when they do it. "This can be you, if you have the balls to come make it yours."