We all make mistakes, so let's concentrate on reversing that error and discuss ways to win back your girlfriend. There are some things you can do to help you win back your girlfriend that have been successful for many other people.
Believe it or not, buying her a bouquet of flowers (roses especially) usually does the job. The fact it known that women just love flowers, and determining her favorite kind will make her appreciate you all the more. This is one of the first things to try in order to win back your girlfriend.
Being able to talk honestly with your girlfriend is important if you want to win her back. Failing to talk openly and honestly is a guarantee failure of a relationship and will leave to a break up; if you don't talk openly, you will need to focus on this.
To a woman, it is extremely important to open up and talk; you will make much more progress if you are willing to do this with her.
Make sure you show your girlfriend how much you appreciate her, if you want to win her back. It is too often that guys neglect to show their girlfriends how much they love and appreciate them. Appreciate the woman in your life by saying thank you and backing up your words with actions by helping her out in a variety of ways.
These tips are to help you get your girlfriend back, but no matter what happens, hopefully you'll have learned what to do and not do, so unwanted break ups don't happen. If you belive you want to stay with this girl then you will definately want to mess up the relationship again.