(This is my personal opinion and how I interpreted the lyrics, if you don’t agree then that’s ok :)

Ok so its no secret that Bang and Himchan are close friends (same age).  They’ve been sleeping in the same room since predebut.  Also since TS arranges the boys by their ages (This is how the ‘golden couples’ were created) they get to share hotel rooms when they promote overseas and they also get free time together.  Bang said that Himchan is the person that keeps all members together in B.A.P.  Himchan said Bang is B.A.P’s motivation.  So you can imagine how important Himchan is to Bang and the other way around.      

• If you read the lyrics, you’ll know that part of song is about Bang wanting to comfort someone.  Bang says his heart hurt and he feels frustrated when he sees the other person having a hard time and he wants the other person to talk about it, but this person cries in silence.  If you read the letter Himchan wrote and read in their concert he said “Ever since I was younger, I had this emotional scar. I didn’t like showing my feelings, and I believe that everyone here will know that not showing it is part of my personality”.  He also said “Truthfully speaking, I’m hurting a lot right now. Because I’m hurting even though I don’t want to hurt…”. 
• Bang also says in the lyrics “I hide what I want to say within my red lips and make up lies again while having my mouth shut tight”.  Even though Himchan is hurting a lot, B.A.P can’t really say that to their fans or when they are in front of cameras (interviews etc).  They only say he’s recovering and try to keep things in a positive side.  
• Finally, the lyrics almost at the end say “Despite looking lonely, I can’t comfort you and when you sadly swallow that pill in your left hand…” The left hand is the one Himchan has to use for everything now since his right hand is the one that got hurt.  Himchan has to drink pain relievers to help him with the pain.  He also might be drinking sleeping pills.  Pain relievers can get people drowsy “…that’s when the lies pretend to not know anything and this is how I’ll comfort yourself”
• When I heard this song, I felt really calmed.  Bang’s voice is very soothing and the melody is also very calming and relaxing.  My opinion does not involve shipping or anything, I just think Bang made this song to comfort his close friend since he is hurting and having a rough time. 

Come up with your own conclusion but this one is mine.  The song fits the whole situation with Himchan perfectly.