Raccoon: I'm poor. I'm in college. I can't draw to save my life. Does it sound like I could own FMA? No I'm not bitter and angry as Panda just so eloquently put it.
Ed didn't know why but he always loved when he was picked up and placed on his father's shoulders. It felt like he was on top of the world and that he could conquer anything. His father only did it though when Ed felt really down. That had to have been the biggest letdown when Hoenheim left. He was never able to feel that he was on top of the world.
Ed knew his mother wasn't strong enough. He hadn't realized that she was dying but he knew that she would never be able to pick him up the same way. He also knew that was part of the reason he could never forgive his father. His father had abandoned them when Ed had needed that lift the most.