How do i get him to talk to me again?

[Riktovi]

If he's convinced himself that he hates you, then he isn't likely to talk to you first. Engage the conversation, even if you don't want to. Send a message or try to call every now and then, and see if he answers. If not, wait a little longer and try again. Eventually he'll talk to you and then you've got a second chance. Good luck.

You can also try simply telling him that you miss him. That can do wonders sometimes.