It's a common question, and, thankfully, there are ways to get her back.
  It will take some work and time, but isn't she worth it? If you're simply not ready (or willing) to say goodbye for good, know that you're in good company.
  There are a lot of guys out there just like you, who want to get their ex girlfriend back.
  It won't be easy, but when you do get her back, your relationship will be better than it ever was before! The very best way to get her back is to make a plan.
  When you prepare yourself for what you are going to do or say, and for any possible reactions from her, then your chances of success will be greater.
Although it is painful to do, you have to go back and look at what was going on in your relationship when it was near the end.
  What was wrong?  Take your time and really think about this.
  Now that you know why the relationship ended, you can take the next step, and learn how to get your ex girlfriend back.
  Don't act out of desperation, and definitely don't get aggressive.
  Don't be pushy or needy.
  These will all make matters even worse, and that's the LAST thing you want to do.
Don't try to make her jealous, either.
  That will also hurt your chances of getting her back.
  What you have to do is take your time, think about what went wrong to begin with, and then do everything in your power to fix that problem.
  Then you have to make her see that you DO care deeply for her still, and you are willing to work, to make things right again.
If, at first, she seems like she doesn't care, that's ok.
  She is acknowledging what you are doing, and she is seeing that you are trying to fix the wrongs.
  Give her time, and allow her space.
  Keep trying.
  Soon, she will come around, and your relationship will blossom again.