Lost And In Love

So I saw this girl 8 years ago when I was in 6th grade and liked her. The language barrier prevented us from talking though I did see her staring at me every so often while I sat alon onn the playground. I decided I was too shy to talk to her so I wished on a star that she would acknowledge me and I could get to know her better and take it form there. The wishing on a falling star worked before when I wanted pokemon stadium and got it for free from an aquantance a few months later. Fast forward about 4 years later her best friend walks up to me when I was leaning on the balcony while everyone was walking to class ( I was going to be late but I felt that it was the right thing to do ). She tells me Nikita (the girl) likes me and asked me how I felt about her. Here is where it gets messed up.I was talking to Nikita 2 days before when i was depressed for almost killing my brother ( that's another story we're friends now) so it wasn't a very good conversation. So i asnwered the question by shrugging and walked off to class. I never talked to Nikita again. another year later Nikita gets into a relationship with a friend of mine. At my brothers primary school graduation I was talking to some kids leaning against a balcony (again) and she walked up to me but turned away and stood alone 9 feet away. I guess she wanted to talk to me, but then before I could do anything she walked away. Now years later I still think about her every day. I don't talk to her, I can hardly remember what she looked like. I do have her on facebook, but I don't know what to say. I live in Europe and she lives in the usa. What the hell do I do...