Flashback (Chapter 5) :
When Jungkook is about to close the door.
DD : Wait, I need to talk to you.
JJK : Why do you need to talk to me? I don't have time to talk to you.
[...]
Kim Maeva (angry) : What's happening ? Who is she ? Why did she come here ? And why did my boyfriend rush to send me out ? Do they know each other ?
[...]
Kim Maeva : It seems like he's rejecting me.. He's behaving strangely.. He even rushed to send me out of his office..
Daehung : Well, that’s strange !
Kim Maeva : He's not usually like that! He's probably hiding something from me !
[...]
Kim Maeva : She walked into my boyfriend's office !!
[...]
Kim Maeva : We can't be sure, maybe there will be something between them...
Daehung : You think a lot, be free.
Kim Maeva : I can't, he's my boyfriend, he's mine, he's only mine. I will never let him live with anyone other than me. Whether he likes it or not.
Daehung (Thoughts) : My god, is she crazy or what? I'm tired of being friend with her, she only thinks about destroying people's lives.
DD's point of view :
DD : So you are the new boss of this hospital ?
JJK : Yes.
[...]
JJK : Work here? You ? For what ?
DD : I want to work here because I worked here previously, so I would like to work here again, it would make me happy.
JJK : I don't want you to work here !
[...]
JJK : Enough talk ! Leave !
DD : But why... I-
JJK : I said leave !
[...]
JJK : Go outside !
DD : Why do you get angry ? I asked you nicely, you can do the same.
JJK : You don't need to tell me what to do, it's up to me to decide what I do and what I don't do.
DD : Please !
Kim Maeva's point of view :
Kim Maeva : I'll stop this little idiot from coming near my boyfriend.
Daehung : Don't worry I'm sure she's not that kind of girl.
[...]
Daehung (thoughts) : Because I feel sorry for this girl !
Kim Maeva : Daehung !
Kim Maeva : Answer me, I asked you this question a few minutes ago.
[...]
Kim Maeva : I must be more important than her to you Daehung.
Daehung : All right.
Kim Maeva : I'm your friend Daehung, your only friend.
Daehung : Yes..
Kim Maeva : Don't lose your one and only friend, okay ?
Daehung : ...