I need advice on an issue relating to marriage from a spiritual aspect. Please help?

I'm 27-years-old and I recently broke up with my boyfriend whom I was sure I would marry. I am so disappointed, heart broken and afraid that I will never marry and have a family. I thought he was the man I would spend my life with but things changed. I have two degrees so I'm finished with my schooling. I always thought the next step would be marriage. My friends are starting to get married and I feel happy for them but I also get depressed when I think about my pathetic single life. This might sound crazy but I bought myself a fake wedding ring for $20 so that I can feel better about my life. I feel so much more confident. I know this may be backwards because it can deter me from actually meeting a man but for right now my fake ring makes me feel so much better because I feel like it's saying to the world "someone loves me and made a commitment to me." I am a Christian and I pray to God to remove this insecurity from me. Can anyone offer any advice on this? Please no keep nasty and rude comments to yourself. Thanks for any help,