Maybe because he was inexperienced? Like he said, ml is his first. And his personality is also shy, even though he's big. So all his past relationships, the girls wanted him to initiate..be a little more proactive. But he's too shy and inexperienced (and introvert too?). So he needed someone who wouldn't expect him to do anything but will do it themselves. Ml was just that kind of person, he just went for it instead pf waiting for Hyun to do anything first.
Also, all his exes never tried to understand him. They were just a curious bunch who wanted to see how it's like to date someone who accepts everyone. But they soon got disappointed and broke up. A week long relationship?? What a joke.
i feel like everyone is glazing this just cos its the author of dtr… isnt the pace of this too fast why is he suddenly not scared of physical touch anymore after a lil affection its so sudden to me