I actually disagree with the first example as to why a woman might not text you after. The writer says its because she's nervous and so avoids the situation. Although I don't entirely agree, I think it's about interest levels. On a subconscious level if you spend more time with her she's thinking you're easy where as if you cut the conversation she's wondering "why isn't this guy into me as much as I want?" Unfortunately playing on a woman's insecurity about her atrractiveness will yeild a higher response rate. She feels the need to be validated and will be more likely to respond. My two cents.