3rd date here, went clubbing in NY with this girl I met. I've had problems with her being sort of shy and not responsive to escalation, but I tried to push on forward regardless. When dancing, she would occasionally reject any touching but would sometimes welcome it. She didn't particularly reject all my escalation attempts (when we were sitting our legs were touching and i had my hand on her leg rubbing it, she didn't withdraw at all).

The problem is when it comes to kissing. I've had 3 dates with this girl and have yet to have a real makeout session yet. I've tried to progress, but it seems like she gets nervous about the kiss. I waited until the end of the date as anytime I'd lean in before hand she'd turn away. The kiss at the end was real quick and didn't involve any tongue. Also, breath is minty fresh so I know that I'm good there. Pretty sure i'm a solid kisser as well as I've never had any issues with any other girls.

I'm so confused by the signals I get from this girl, and not sure what to do at all. Am I doing something wrong? Is this normal?

TL;DR: 3rd date went clubbing with a girl, not too responsive to escalation on dance floor but welcomed when we were sitting. Kiss is always quick and I'm often rejected when going for it. What to do?