D.O says he felt bitter towards Jo Jung Suk while filming 'Hyung'

During the press conference for 'Hyung' on October 26,D.Otalked about his co-starJo Jung Suk, who plays his older brother.  

D.O first complimented Jo Jung Suk with,"He's always serious and relaxed, but when he acts, he's humorous and flexible.  I want to resemble him."  However, in the movie, Jo Jung Suk's character could be detestable and abusive, so D.O was asked, "Seeing as how you get immersed in your character, wasn't Jo Jung Suk unlikeable to you in real life?"