Girl kept me as friend even after years of not talking, ? for the ladies?

?s a little long. I had a class with a girl a few years ago and I wasn't thinking about it that time but it seemed that she tried to show she liked me. I was hanging out in the back of the class by myself because I was bored my teacher was ok with it just a chill day. She came to me and we started talking, I didn't feel awkward bcus im pretty mellow, I didnt think about anyting at that time bcus I had a girl already being a gentleman I taught it was just a regular conversation from a girl in my class that never talked to me before. A few weeks pass and they were doing a random search in my class so we went outside to the hall for a few, she started talking to me again and she poked my stomach, then asked if she could borrow my jacket bcus she was cold. Being the clueless guy I am I didnt think anything of it and I said sorry I needed my jacket haha. A semester passes and we were in different classes now, I remember what happened and thought of the possibility that she liked me. Shes a pretty nice girl smart and played volleyball very active plus she looks cute to me so I found her on facebook and friend requested saying I liked her, I couldnt do it in person bcus its a big school. She didnt reply but shes not one of those girls online all day so I figured I would wait. Well im not into social networking much so more than a year passed and I check on my profiles every few months and she still has me as her friend, Im pretty sure she checks her friends bcus she only has 90+ whereas some people just friend people they dont even know. Now I just cheked my profile and her profile is shouting out she likes a person but is shy to say, at first I was thinking good luck with that then I thought what if it was me shes talking about, Im still not sure if she was trying to flirt or just aking for a jacket I feel like I just see it that way bcus Im attracted to her, I mean its been almost two years of no contact but were still friends, is it just wishful thinking?