One-sided love

I love her okay. I love her. And yes, I told her. Because of the people telling me we would be a perfect match and that she sure likes me back. But she loves someone else. We write all the time and she is just so happy when she tells me she’s writing with them. I always tell her how happy I am for her, but this all just hurts me. When I try to talk about all of this nobody really seems to understands. I can’t love her anymore. But my heart and my head don’t seem to understand that. I just want her to be my girlfriend so badly. She’s always telling me how pretty I am and that she’s jealous when I tell her I hold hands with another girl/ hug someone else. But she then is not jealous because *I* hug/ cuddle with someone else but because I’m brave enough to cuddle/ hold hands with a girl. Because she’s not brave enough to do so. That sh*t just hurts me so bad.