To be honest, if you start hanging out with a girl one on one, there is a short window of opportunity that you can do anything.
Most outgoing girls will give you ONE "meeting" Most ingoing (introverted) girls will give you TWO "meetings" (When I say meetings, I mean hanging out one on one)
If you are rich/handsome +1 meetup. Girls are not acting cruel, YOU ARE especially if she's interested in you. I'm not talking about going on a date with someone at lunch time or studying. I'm talking about a real bonafide...Let's do something and then let's eat something and then let's get it on kinda date.
Before you make your move..I recommend that you "suddenly" become busy for the next 2-3 weeks. Then the next time you meet her, then you make the move. Cause if you make the move after hanging out with her for several weeks without doing something and then you decide on doing something..she thinks you're up to no good. She cannot trust you because you do not trust your own masculinity.