Don't know how old you are but I have had to several times and can't think what to say. You just put it behind you and move on. Be proud you stepped up and took your shot and accept the reality that it did not work out. If your a male this is just a fact of life in general. I will tell you that you did the right thing though. I have had friends who would position themselves in the friend zone for years with the thought they would just get to know them and realize how perfect they were or something. Its an aweful situation and I am glad I was able to avoid it as it was common in my peronality type of guy. You may not be a guy but I can really only give a guys perspective.