Have you been doing everything in your power to try to get your ex boyfriend back? Have you tried being really nice to him and even attempted to change some of the things that he complained about when he broke up with you? Have you been wracking your brain trying to figure him out and convince him to come back to you? Your problem might be easier solved if you started thinking like a guy instead of thinking logically of how to get your ex back. Right now your boyfriend is in a very emotional state and depending upon what you have been doing to try to get him back you may be further complicating the issue and actually making it more difficult to get him back than is necessary.