You need to distract yourself and try and move on. Try to get back on the dating scene and meet new guys, go out with friends to social events or concerts or clubbing. Do something good for yourself, try a new hobby, travel with friends or do solo traveling to get back to your roots. What you need to do is FOCUS on YOURSELF. Stop looking back to the past, things are not going to change or come back. You are wasting your time keeping that past alive and slowing your life down for that. Ask yourself this, is he worth stopping my life? Is he worth so much of my thoughts?