Are you feeling like everything you do pushes your ex-girlfriend further away? Are you asking yourself "What should I do to get my ex girlfriend back?" every waking hour? Thinking about her constantly, wondering what you did wrong? I feel your pain brother, I was in your shoes not long ago myself. Here are some things I learned that will greatly improve your chances of getting back together with your ex girlfriend.
Have you been frequently calling your ex girlfriend, constantly writing her e-mails or text messaging her non stop? Are you trying to make her feel sorry for you or feel guilty about the break up? If you are doing any these things, stop right now! If you are asking yourself "What should I do to get my ex girlfriend back", then you absolutely must stop doing these things immediately, as they certainly will not help your case, and will in all probability ruin any chance you have of saving your relationship with her.
First thing to do is to initially limit your contact as much as possible with her. If you are in a situation where you have to see her (co-workers) be polite but don't initiate contact with her.
Do NOT be rude or hateful! Also, don't "accidentally" show up at places where you know she will be, that's called being a stalker and will not help your case. Also refrain from becoming a cyber-stalker: DO NOT stalk her Myspace, Facebook, Twitter acounts, etc., as this is a one way street to failure and misery for you and her both
Women want a guy who is confident, not one who is whining or begging for approval or forgiveness. During this time of extremely limited or nonexistant communication between you and your ex girlfriend, focus on ways that to improve yourself as a person, rather than on what went wrong in your relationship. Don't pity yourself, improve yourself instead. This is going to be a challenging time for you, and it is going to require discipline to do the right thing and not drive her further away.
If you appear overly eager to get your ex girlfriendback, you will inevitably send her the wrong vibes, causing her to continue to reject you. The key is to get her to chase after you! She can't very well reject you and pursue you at the same time now can she?
Assuming you behave correctly, your ex-girlfriend will undergo an emotional change in how she feels about you, since you are not actively pursuing her. You will become mysterious to her in some ways, because she is not sure what you are doing or feeling. This is actually something that can work in your favor, it's called challenge. Give her the "Gift of Missing You." It works wonders but you have to remain in control yourself and your emotions, especially when she starts showing 'buying signals'.
This should be a start but there is much more work to be done if you want to get your ex girlfriend back.