
Okey, so this is my interpretation:
Jaekyung just put in a mask an acted this way becouse he don't want Dan to do other job - he saw him all exousted and hurt and he don't want him to continue that - especially that he did that to buy him a birthday gift. Sooo he tell most of the stuff to discourage Dan (toxic as hell but wel....) ^^^ how delulu i am to believe that ? xD

Do you know what's the biggest problem with this manhwa ?? That we don't have a look at Jaekyung's pov...
In BJ Alex we had DG (mosty) AMD Jiwon's pov, thanks to that we knew what is he thinkink, why he does things he does, and by that we didn't percive him as such an asshole... But for Jaekyung we don't have that, it's entarly Dan's pov so we can't understand a shit about what Jaekyung does, his morivations and all...
#-.-)

There are hints and clues to what he does. I know enough to know most of his personality, not behaviors, are a facade. Don't think every thing he said at face value. He says something but he means something else. My friends think he is tsundere and that does fit. He just acts like a spoiled 14 year old child. He is being a man-child and Dan is getting to have to get him to grow up.
Do we all agree that Jaekyung is going to loose the next match and put all the blame on Dan for that ?? I'm not ready for this ┗( T﹏T )┛