it was most likely because she didn't feel like she knew me well enough yet, which is fine.
I remember reading this story of these two virgin couples that were dating. The male went to kiss the female, she felt like he was wanting to do more she told him to stop, he stops.
The next day she claims he attempted to rape her.
Guy went to jail.
This is why I don't deal with those kind of relationships that don't involve in love.