Maaan, I've experienced this feeling almost exactly, of being in a waiting room where I was almost forgotten (wondering all the while if I did something wrong), and then being worried about making the person I was waiting for feel guilty! (Maybe it's a Midwestern thing!) I also chatter and overcompensate to make up for my nervousness. I often wonder if my nervousness is showing or if I'm doing a good job of masking it (and if I am, whether that's a good thing...).

Anyway, I hope this new venture goes well for you! I'm glad the person you're seeing is nice and takes your time seriously (even if she runs a little behind).