I've been dating a girl for a few weeks now and it seemed like she really liked me. We always have a lot of fun together and in the last few weeks we have cuddled at her house, as well as my house. Both of us are in our mid-20's so it's not like we're naive about relationships.
The last time we were on her couch I had to leave soon so I decided to go in for a kiss. First I kissed her on her cheek and she smiled, then I went in for one on the lips. The kiss was completely rejected by her turning away. Obviously I felt hurt, dejected, and in shock. I grabbed my stuff as quickly as I could and left. Later that night I talked to her and she said that she felt hurt that I didn't give her a hug when I left. Her saying that shocked me even more because I was scared to even touch her after that.
I'm not really sure what happened or how I could have read her signals that badly. What steps can I take to find out what happened and if a relationship is still a possibility?
Update: I spoke with her about it and she said that she doesn't want to kiss unless we're actually bf/gf, but I find the situation a little strange. She told me that she'd give me her "decision" on becoming my gf after school lets out in a couple weeks.