My long time friend said he doesn’t know me

met my childhood best friend when we were three and four. He was my favorite person in school, we were really good friends. I moved away when I was eleven and he was twelve. Since then, we’ve had no contact. Eight years later, I reached out to him, but he told me he doesn’t remember me, he kept saying I don’t know you but when I mentioned my other best friend he said he remembers her but not me. It felt like someone took my soul away. I miss him all the time. I don’t stalk him or look at his pictures, but I grieve him every day and every night I cry because I know I will never see him again. I’ve tried everything to distract myself, but nothing helps. All I do is think about him. This grief is eating me alive. I am also so embarrassed because I would always talk about him to my family, also I didn’t reach out earlier because of my severe depression and didn’t get a phone until I was 16.