V notices that his heart aches when he's not with Jungkook. Jungkook feels something when his hyung is clingy with others. 

'Kookie is it right to feel this way?' V thought as he walked towards his room. 

If I thought for just one moment that this would be my last breath, 
I'd tell you I'll love you forever, even beyond death.
If I thought for just one moment that your face would be the last I'd see, 
I'd take a million pictures and save them just for me.
If I thought for just one moment that your voice would be the last I'd hear,
I'd listen attentively and promise not to shed a tear.
If I thought for just one moment that your touch would be the last I'd feel, 
I'd embrace you and know that this has all been real.
If I thought for just one moment that my heart would beat its last beat, 
I'd thank the Lord for allowing us to meet.
- Dana Schwartz