I am emotionally dependant

I know that maybe this isn't the right place to post it but I am emotionally dependant to a girl. I was brilliant at school and I had friends and then I met a girl and she became so important in my life that I ignored my friends and my school and I became shy and quiet because I don't wanted to talk anyone except my girlfriend. This lasted for three or four years and even though the girl ignores me I did not realized until now that she didn't loved me and that she only used me because in my understanding she was perfect. It was a mistake. What should I do? I don't want to tell this to my psychologist. It is possible for me falling into this again? If the response is yes I think I have got a serious problem.

You should talk with your psychologys taht is why you have one¡ Why would you want to keep for yourself something that is a trouble? You are lucky to have someone that could help.