We have no way of knowing if it was his fault or not because the evidence present is pathetic.This is a game of stories, which he will ultimately lose because crying women evoke an instant sympathy in the human condition.
If you no longer wish to pursue this, then that's your choice. I was simply offering you a few ways to aid him if that is what you wanted to do. This entire thing is a waste of time highly emotional. The only way for it to conclude properly is for those involved to begin acting logically as opposed to impulsively.