Believe it or not but in more than 90% of cases relationships can be revived.
There is one very simple way to tell if your relationship can be revived.
Ask yourself: Were you BOTH happy together at one point, even if it was a short period of time?
If you had a working relationship even for just a short period of time you can almost definitely get your ex girlfriend back.
Think of it, if you were happy together it means 2 things:
1. She definitely had and probably still has some feelings you.
2. Your ex girlfriend misses those happy times just as much as you!
If you never had a working relationship and your ex girlfriend never really loved you as much as you loved her, i am very sorry but it means you two are incompatible. You will just have to accept the fact that she doesn’t feel the same way towards you as you feel towards her.
My name is Mark Huggens. I am 29 years old from California, US. I, just like millions of men had to go through a break up with my beloved girlfriend. But I was fortunate enough to get her back. After this experience I decided I will create a website that will help men that are in the same situation as I once was. Read my full story to learn 
Hello Mark!
My name is Andrew and thanks to your site I was able to get Jessica, my (ex) girlfriend back! We were together for 3 years before breaking up and if I it wasn't for your site, I would have lost her forever. We have been together for over a year since I got her back and now that I know what mistakes to watch out for, our relationship is better than ever before. No more fights and arguing like before. Thank you so much!
#1 by Lauren Pointon on August 6th, 2010
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That is a excellent point to bring up.
#2 by Horace Lamunyon on June 18th, 2011
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One thing I like about reading sites like this, is that there aren’t any punctuational or grammatical mistakes! Makes it difficult on the reader sometimes. Very good work on that and additionally the topic of this site. Many thanks!