Bottom line,
"friend" means she isn't interested. I have talked to my girlfriends about this numerous times how we know if we would F(### a guy within a few minutes of meeting him. If we feel there is potential for that or a relationship of some sort in the future, we might exchange numbers etc. but would NOT use the friend word as we know that that is the ultimate let down word.
A woman usually knows if chemistry is there right away. I have found a lot of guys "THINK" there is chemistry there, just because you are attracted to her and feeling it DOES NOT MEAN that she feels the same way!! As you are finding out. Typically what attracts is questions about the woman,(asked sincerely) the guy being confident, and a little mysterious!!!!!!!! Look her in the eyes, and don't act desperate!
I have no idea what kind of guy you are, Or what you are doing out there. It doesn't all have to do with looks thank god. Dressing well, smelling great, and having a sense of humour can go far!