Sometimes we have to create our own closure...

Sad but true fact of life.

I'm sorry you're hurting so badly, but at least there is an important lesson to be taken away from all of this.

Never make someone else you're entire world, never allow them to become the center of you very being, and the reason that you breath Because it makes the normal pain from parting that much harder to deal with, and all relationships come to an end sooner or later, someone either leaves or dies, its inevitable.

My favourite post break up tactic is distraction; music, movies, series, books, friends.
The more options the better.