My lost best freind

Every time I try calling my friend he doesn't answer. I don't know what I've done, but I know that I want to be his friend again.He really made me laugh and we had so much in common. We even played on my pc. I do not know how to solve it. Maybe I could text him, try to call him again or just go to his house and see him. What is happening ? I wanna be his friend. But what I do remember is that we were playing hide and seek and he got upset. By miguel