Finally i was correct Their are difference between Krist-Singto . Not for once both looked or talk to eachother even when they were standing infront of eachother they both are avoiding to eachother. If this was for making of new pair or whatever theyy did in the past was fan service still they have talked or looked at eachother but here completely avoiding as if they dont know eachother. But yes at the same time Krist was not liking when Singto was laughing with other and i think reason is FriendZone adding to it might New is also there who is talking to both