Comment by Blackened soul on W1NTER

@Blackened soul Well his talking about how Jung Bin and J being close. 

He also talking about how Jung Bin and Mc become close in hangover soup shop. 
Remember the main reason Jung Bin meet Mc in this shop is because Jung Bin want to find Ml in this hangover soup shop to ask about the magic stone.

He wanted J for himself. Possessive bf.
He just assumed that if he know it is J he will not make him meet Jung Bin in that hangover soup shop. (To see J real face)