The seme is a manipulative fuck
He reminds me of a relative of mine that has bordeline
I think he was more upset that Dan didn't actually confess and he just doesn't know how to express that frustration. Still a dick move though.
I think we've been underestimating jaekhyun. I think he's not as big of an asshole as we think. Remediation arc is much needed but I think it started back when Dan confessed when he was drunk. Author has just been setting us up.