This is the biggest mistake that men make - thinking that connecting is about some sort of mental checklist related to value. Maybe that's how a lot of guys look at women. It sure seems that way to me, that too many are less interested in a human being and more interested in acquiring a side-kick and piece of ass that makes them look important to other men. But that isn't how it works for most women. Chemistry is a lot more complex than a list of qualities related to value. She wants to know how you mesh with her on a very personal level - which includes mentally, socially, sexually, and a whole host of other ways that mostly aren't taking place on a conscious level. Except for a very few shallow and/or insecure women, perceived value doesn't really enter much into the equation unless you really are outside the base norms for cleanliness, presentability, and behavior.

The thing you are correct about is that just because she isn't interested in you, it really doesn't say anything much about you other than you weren't a match for her in some way that is deeply personal to her.