What do you think I should do if I know this girl who is always saying stuff like, "I have a serious question..." and then when I ask what it is she says, "Umm.. never mind... maybe later" Also saying stuff like "I don't know and you don't know and I..." and she doesn't continue when I ask her. She wants to tell me something but I think she is afraid or something. How do I get it out of her without being too pushy?