After days or weeks of break up with her, still you cannot move on. If this is the case, never deny to yourself the chance of being with her again. However, when you have just finally gained the courage to fix things up, you realize that she has started to date someone else already. If this happens, the least that you can do is to put up a fight against this new guy or else you will just scare her away more.
Now if you want to really know how to get your ex girlfriend back, remember that you are now entering a new battle in order to win her heart back. However, in this battle, you must never get physical. Just do everything that you can to prove her that you are more deserving.
First is that you have to look good always. Stay as fit and active as you can. If you are the type of guy whom she used to cheer for in the court, be that guy again. Be the guy whom she got so crazy of. After that, try to change your attitude as well. If you used to frown at all times when you were still together, this time try to put on a smile on your face. Each time you meet, stay cool. Be the guy-next-door type she has longed to be with before. Once in a while, send her thoughtful messages. Just don’t make your messages seem so obvious that it will make her say you’re begging her to be back to you again.
If you happen to see her with this new guy, know the guy. Try to be good to him. Tell him some things he must know about your ex. Just keep the positive ones only. After a minute or so, leave them. Give her more reasons to make you stay.
Finally, if you seem so desperate already since she seems to love this new guy already, remember this- rebound lovers do not get it! Deep inside, it is still you. Time will come when she is to fall out of love for him. When this time comes, he will leave this guy and come back to you.
If you really want to know how to get your ex back, the only key is to let things flow as it is. Just ride with it!