Well he was betrayed I guess. But we do know Hojin didn't want his bro dead tho lol... That fight would be one hell of a scene. I really thought the author would put it in.
I think his brother is out of sight, out of mind. Hojin did say that he was thankful his brother ran away to finally be rid of him, because he would have never been able to do it himself. I think his personality wouldn't make him seek out his brother, ever, even on the off chance the two broke up.
So we're just going to ignore the fact that Yoosung never told Hojin that he killed his brother? Did I miss something or what?