To explain myself better, when this Manhwa started, it had a slight hint of comedy with how ml kept running into mc. He also made his boundaries clear. Then eventually he started feeling possessive when mc got busy with his life.
What was unexpected was the sudden onset of aggression by ml, to the point he would idk capture
Mc mom.
Nonetheless it’s an interesting route, I love how author did this without use of any sa. (I feel Like i am Jinxing it)
I think you just missed all the signs. He had the all the telling signs of becoming a toxic CEO, arrogant, wouldn't admits his feelings but was possessive at the same time those are RED flags. Making clear boundries but forgetting them that's like their canon event.
Also just look at him, he could be the poster boy for how a possessive red flag ceo should look like lol.

???hey i think the author is pulling this out of her ass, WE did NOT see this coming wth