Responses

Are you reading the manhwa at all. Hwan is always considerate of chiwoo, thinking maybe chiwoo didn't like him because he moved out suddenly without a tangible reason. The reason why hwan moved fast was because of jin. Hwan saw that jin was also interested in chiwoo and jin told him if he likes chiwoo, he should confess fast and not make chiwoo sad. Hwan said it is not of jin's business that he knows what to do.
Idk man, ep29 is almost like that's not hwan. From my observation, Hwan is the type that like take things slow. He probably not someone that going make first move. So, for him to suddenly thrust into Chiwoo, hmm that's kinda not him imo. Plus, he doesn't looks like a bold type to have sex after confessing to chiwoo. But anyways just my opinion