Andrew, my super-loving child

During Andrew's free time at school, he likes to draw and write. He'll come home with random drawings, usually of Pokemon or animals. But one day, he brought home this picture for Jacob and wrote, "I love you Jacob." (Yes, he still gets his letters backwards.) This seems crazy to me! To do this willingly, on your own is mind blowing. That's probably due to the fact that I'm incapable of expressing such emotion, written or verbal. He never ceases to amaze me.