That’s my impression He seems to be nervous that Sejin is comfortable enough around people to drink, for example. It’s probably not something he has ever seen him do in the past. But he set the whole company up himself so it just seems like frustration on his part, not serious anger. Im over-analyzing haha.
Yes he’s the one. The nightmares are actually flashbacks from the past lives they had. If you’re curious here is a link to spoilers that explain everything better than me:
https://www.mangago.zone/home/mangatopic/16897764/
ML is probably starting to feel insecure rn. -SPOILERS- Even though he’s fixing everything he did in the past timeline, there are now things he can’t completely predict or know in advance because of the new choices they’re both making. MC’s autonomy is making him nervous, despite the fact it’s what he wanted/ counted on in anticipation that he might regain his memories and leave. His alpha ass is now stuck between wanting MC to be independent and wanting MC to stay by his side. He doesn’t think he can have both, which makes me wonder wow how terrible was he in the past timeline. It seems like he assumes that no one in their right mind would stay with him after knowing what he did.