He agreed to Dohyun because he didn't want to lose him. He refused him at first,then Dohyun walked away. So he did it anyway for Dohyun to stay. It's give and take. Dohyun never forced him like he did. Dohyun was a jerk but still, he gave Sungho choices. The only possible cause (if kidnapping Dohyun was for revenge) is maybe after that, a bigger catastrophe happened in his life causing him to blame everything to Dohyun, and he forgot that he made the choice in the first place.
Getting affected at work, start to workout after Subin told him about his belly, singing national anthem to distract himself from Subin, come to fetch that 'shameless' Subin despite of really don't want to be involved with him... Hyung is just a tsundere cinnamon roll that needs a happy end in this webtoon.
I think when talking to Noona about her boyfriend, Hyunwoo relates the story with him and Subin. That makes him feel that the person who Subin is dating, is just his subtitute. But Subin still ignores him despite of his call and messages, then he starts to feel the danger. He is just too comfortable with being loved without the need to reciprocate the love. And now he don't want anyone with Subin and he also don't want Subin because of his "I'm confused" shit. Tell me why I should like Hyunwoo.
he's trying :')
omg that desperate reply thou :'DDDD !! "he's trying" *puppy eyes*
and nope i don´t like him either...really even subin is getting harder on my nerves :')
all i´m hoping for is hyung to get what he deserves