So you and your girlfriend broke up, and now you're trying to figure out the best ways to get her back. It doesn't have to be difficult to get your ex girl back, although some choose to make it so. I know a few tips and tricks to get you started in the right direction.
The first thing that I tell everyone to do, regardless of how bad the relationship was, or how much they think they need to talk to this girl is... give her some space. The worst thing you can do after a breakup is crowd the person. Before she's going to even start think of getting back together with you she's going to have to miss you, a little bit. So do yourself a favor and don't talk to her!
I'm not saying you have to be rude but there is no need to call her constantly, or even at all. The less you're in her life the more she's going to recognize what it's like without you in it. Both men and women suffer when they feel like they can't have something, so when she feels like she can't have you she's going to really start thinking about you again. And that's a good thing.
While you're taking some time to separate yourself evaluate what went wrong in the relationship. What happened to tear you guys apart? And before you start playing the "blame game" remember that there is no such thing as a 100% fault in a relationship. As hard as this may be to hear it's true. You can't blame her for everything, and she can't blame you for everything.
Think back upon the issues of your relationship, can you get past those issues? And it's also important to figure out how to avoid those issues in the future. If you fought a lot figure out ways to diffuse arguments before they get started.
All right, so now you have at least some idea of where to start. Go ahead, get your ex girl back. Remember that patience is a virtue and communication is key. It takes time, that's why it's so important for you to remain patient. If you guys had any love for each other it's possible for it to come back, people don't fall in love on accident-- it's for a reason!