I would simply mourn the relationship as what it was and understand that it can never go back to what it was before. You both have taken different directions in life and cannot be together. It hurts that he blocked you, but that makes it easier for you to move on with life. You do not need the constant reminder of him around.

I am also going through something similar, yet different there are key differences. And I am still wrapping around that it is truly over. There is a slight chance that it is possible for us to get back together (we basically need to sit down and talk out some issues) but I am slowly realizing that this could easily be a pipe dream. I am numb to my situation.