Not contacting you is the kindest thing he could do for you. The problem is that you think you should get closure from him when the fact is, you get closure from within when you accept that its over and that the asshole that left you wasn't even man enough to tell you to your face that he was ending it.
You will start to feel better once you ACCEPT that the relationship is over, that YOU DONT WANT TO HEAR from someone that would do what he did and you get your fine self away from the pity party you are throwing yourself and you sashay out into the world knowing that there is a better LIFEmate out there for you then Mr. Coward.
You'll be fine... just start the mental process of shedding yourself of him.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion