can someone help me?

I've just broke up with a person which I really liked because I was angry;; this person got sad every time I tried to talk with her because she thinks that I was just playing her... I know it looked like I was playing her but she wasn't any further from the truth. I tried to make her understand what I felt trough facebook ( I was too shy and insecure because in the past I got insulted every time I tried to talk to people; it happened also because it was the first time I liked a girl and I was very secretive about this). In the end she said that if I cared about her I would had just loved her silently... But how could she know what I felt if I didn't talk? I thought that communicating what I felt in a relationship was important, so Itried to let her know what I felt, I wanted to commit in this relationship so much and now I end up alone like a stray dog with no owner; I still love her even now but she wouldn't believe my words even if she read my question here. everything I said was completely useless. I don't know what could I do if I wanted to get her back; I couldn't even let her go because I still love her... It's just like Snape and Lily. she also said that if I loved her i wouldn't letted her go but I stayed with her so much time... I only letted her go because she says she feels sad when she knows I'm still trying to make it work. A wise man told me she doesn't need my help to grow up mentally and that she can make it on her own. Any idea?