It's okay to cry, it's okay to be sad about it.
It's okay to miss him, and it's okay to wish you did something differently.
But never blame yourself for how things turned out.
Never tell yourself you can't do better, and never tell yourself this is the end of the road.   
Fate has a time and place for all us and nothing you can do or say will change that.
Sure it's okay to fall, but it's never okay to stay down.