This Guy hates me for a reason i don't get. Can someone explain...?

Who cares if he hate you or not. You have no connection to him at all. So stop worrying about it. You know how many people hate me? I don't know, and don't care. Actually its probably a lot, and I don't care. You owe nothing to people who hate you. If he hates you, let him. Worry about the people who like you.