When you have lost the woman you love, you may think the way to show her you love her is to send her gifts, flowers and love poetry. But if you do, she will think you are trying to buy her love. When a woman is upset, the best thing to do, is leave her alone. The more you push, the more she will pull away. There is a better way to show her you love her and it will make her want you again.
If you want your ex girlfriend back, respect her needs and her wants. When she broke up with you, she might have told you she needed some time to think. If you stay in her face and constantly call her, how will she have time to think? The best thing you can do is make yourself scarce. Occupy yourself with other things and keep her off your mind as much as possible.
Maybe the reason she needed time to think was because you were crowding her too much. Perhaps it was something else. Do not try to figure out what set her off, it will just drive you crazy. Be content to do your thing for a while and let her have some space. When she has time to settle down, and it will take at least a month, approach her as a friend. This is not easy when you are still in love with a woman, but you have to regain her trust.
In fact, being a friend to an ex girlfriend is something that a lot of guys refuse to do and they end up losing her for good. You are not going to be just a friend forever, it is just a way of getting your foot in the door again. She is still in love with you, but a little wary of starting another relationship with you. The biggest problem most guys have is impatience. That's because you think of her as your girlfriend. But if you have broken up, she is not your girlfriend anymore.