IMO I don't think you're being too needy. We all want to feel that sense of touch from the person we care/love, that's just being human. Obiviously you do care/love her because you're sticking with her, which is pretty awesome since some guys would've left a long time ago. Maybe she's been through something really bad in her past that's making her close herself off from you, I know that's how I used to be. Try to keep talking to her and hopefully she'll let you in on what's really holding her back from caring/loving you all the way.