First, I'm really regret about your loss.As I think,if the whole family is not only your most important thing,the another one must be your friends.I have a friend,we've met for about 7 years.We passed something that makes us get closer,so we always treat each other like family.Cause the academic strain,we seldom to visit each other.So I cherish each time we meet.I can't image how could it be if I lost the friend,or family.So just go ahead and forget the bad things that hurt your heart,although your friend is already gone, he is still there in your heart right?