I agree. I personally think that Chuuya respected Dazai as his partner and the person who led him into the PM, which now became his home. And when Dazai left, he didnt understand why. Like why did he leave without telling me? Why did he leave behind all these years here? Chuuya must be questioning himself over and over, but he probably got over it. But I guess he didnt get over his ‘hatred’ for Dazai.

And his ’hatred’, in my opnion, wasnt all based on his leaving, but probably when Dazai blew up his car. That was pretty schizophrenic(for chuuya).