There's this girl I like, but im not sure if she likes me?

Well I like this girl and im not sure if she likes me but anyways here's what happened. One day i spoke to her and she got a little mad at me for something really small, then she made peace with me one day in the cafeteria( That was in the 9th grade, Now in the 10th), so she went up and said "Hey um, I don't want us to fight anymore. Friends?" and naturally i shook her hand and said yes. And she smiled and walked off. So, through out the year she was coming up to me and asking me about how my family was and how i was while her friends where just looking at me and her while behind her and she was kinda talking fast as if she was nervous ( Keep in mind this happened like 5 times through out a year). Well on the last day of school last year, we could basically go to any classroom we wanted to hang out with friends and stuff and she was in a classroom i was in. So she walked up to me and was asking me about my family and how I was and was giving me a light pat on the shoulder and sounding nervous as ever, and her friends just 5 minutes before where her and her friends arguing across the room and she said "NO, Im NOT afraid!". Then this year, I was at open-house so my parents could meet my teachers and stuff and her friend was staring at me practically the WHOLE time. Then about 2 weeks later, I was hanging out with my friends after school and i saw her in the background arguing with a friend, so her friend said "Just go talk to hiiimmmm" and she said "NOOOOOO" and pulled her friend by her hand and walked really fast around the corner around a plier and walked up to another friend and said hi and stuff but for some reason avoided me. So i recently added her on my Facebook after not seeing her for a LONG time, and found out that she switched schools (now im sad T.T) and iv'e been trying to talk to her on Facebook but only got to talk to her once.( This ALL took place from about a year ago to now). So do you think that she likes me? Thanks for reading :D!