A friend to remember

When I was young, very young, I had a great friend. I wish I was as great a friend to him as he was to me. When I was in LKG, during interval I used to sit alone in the entire class. Teachers used to tease me and I used to be quiet. He once grabbed me and rescued me out of it. In one of the later years I remember a painting class where I forgot the brushes and paints. The teacher told me to go out of the class. He said to teacher that he'll give his things to me and whether he can go out of class instead. Of course teacher said no.
I lost him over some wrong things in later years. Wonder where he is. I feel stupid and sad to have lost him.