Do Air signs often have no souls?

Yes, true. I don't know what else I can say that you haven't already... I dated a Gemini & an Aquarius and no matter how much I cared and tried to get them to open up, it was like Mission Impossible. I'm pretty certain they both trusted me, especially the Gemini, but they seem to keep a tight lock on their emotions and you have to wonder what goes on underneath the surface. It's pretty obvious that they're thinkers more than feelers, but it does get very frustrating when they act so shallow. My Libra cousin is the same way... I know she has feelings, but she won't discuss them and she can be very superficial.