Thanks for the link. When we were talking about this on Friday (or Saturday?) night I was so with you on this shit. I was a late bloomer on getting out of the nice guy rut, most likely because my relationship from my early 20s was so extremely long-term and I didn't get much dating/single-guy experience. It's pretty eye-opening when you figure it out though.
There is nothing more cringe-worthy than when you see a guy in this mode, and it's so obvious how they feel because of how strangely they're reacting to the girl. Just giggling, laughing nervously around her and overreacting to her every move. But ultimately signifying nothing, avoiding eye contact at those moments that would make it all crystalize... So, so painful.