This advice is easy to give but no easy to follow. When a breakup happens, we tend to analyze what it is that made us part from each other. Pity is not the right emotion in this case. Self-blame is also destructive. All the negative emotions and feelings lead nowhere. They ruin your personality and do not help to restore. Do not blame yourself for what has happened. Even the best women are betrayed by their partners, boyfriends and husbands. The problem might be in your ex who was not good enough to stay with you. Men do not like to be around ladies who are more educated, more intelligent or richer than them. They are not ready to compete and usually leave such girls.