So, the question is how to let go of the love of your life?? Putting the question that way means you thought he was the love of your life. However, all the cracks in the relationship was enough to push you away from him. So would think he was just a love that cut deep. If you spend any time thinking of him then it will in grain in your memories and present thoughts. That will bring up feelings. The more you do that then the more difficult it becomes to let go. One must spend less time thinking of the past. Spend more time in the present. Maybe think about your future. Only if you can spend less and less time thinking of him will the feelings pass and let you move forward. I wish you happiness.