What should I do in this situation? (long) ten points best answer?

Ok so I have known this girl for four years now. We are best friends. and about a 2 years ago, I told her I had feelings for her. Unfortunately for me, she did not feel the same way. There was a period of awkwardness between us. After a few months I had told her I had moved on We we are still best friends today. The only thing is that I lied to her when I said I had moved on. I still love this girl with all my heart and always have. I want to tell her what she means to me but I am afraid that if I do, the outcome will be worse than last time and she won't give me another chance. i think she may like me but I'm not sure. She always strokes my leg at school for some reason. Then, I invited her out to a movie with me because I'm going to italy for vacation soon and I wanted to see her before I left. At the movie, she was wearing really short shorts which is the first time I have ever seen her wear short shorts in the 4 years I have known her. She also kept looking at me and smiling periodically throughout the movie. She was touching her legs a lot in front of me. And she wants me to come and visit her new pet when she gets it. She has never invited me over before. Also she wore a skirt one time with shorts underneath so that she could be active and not worry about showing anything. Sometimes her shorts would scrunch up and she would have to reach up her skirt and pull them down. She was not afraid to do this on front of me at all. She tells me many personal things and we often tell each other how good of friends we are. I'm not to sure if I should express my feelings or keep them to myself for the time being and just go with the flow?