Usually, there are 7 stages of breakup. You go through the stages of - desperation, denial, bargaining, relapse, anger, acceptance and hope. At first, you are desperate to go back to your ex. In the next phase, you try to deny or refuse to accept reality. Then you start mentally bargaining on the situation after which there could be a relapse of your desperation and denial phase. After this, you feel angry about the situation, next you accept the fact and then a ray of hope comes to you that you can survive without your ex.