<human>: Can you give me the gist of the text in a nutshell?

I'm 25 male. So some time ago I met this girl through a friend. We hit it off right away. We've been on a few casual dates. We've made out a few times but no sexy times etc... She's clearly interested though as she calls / texts alot and I even got a few very daring photos. 

What confuses me are that she constantly complains about how she can't find any guys and yet every time I try to make a move she hits the break. I feel like I've been very clear with my intentions and she seems into me, but sometimes it feels like I'm very close to being friendzoned anyway. 

She's not really shy but at the same time very closed off. My friend (the one who introduced us) says that she's very hard to "get" and very careful about who she dates. That I've gotten those few dates to begin with is somehow a feat when it comes to this girl. 

So guys and girls, any advice?
<bot>: Dating a really 'hard to get' girl, she gives every sign of being into me but hits the breaks when I try to tale it further. How should I 'read' her? Advice?