Since people said that Kyungie is the member in EXO that was affected most by the crazy fans, cuz, you know, crazy fans like to touch their idols anywhere they like right? Maybe Kyingie's brain accidentally mistook Baekkie as one of those crazy fans due to the amount of Crazy fans he have and the stress that was caused by them. Yeah. Until a second or so passed, his Brain then realized that it was just Baekkie, then he allowed Baekkie to his neck but no reaction was found.

It's like someone who got as an example. After getting rap*d, when people try to get near or touch them, they would shrink back in fear and start panicking right? It's something like that for Kyungie's case. But instead of being ,(which cannot ever ing happen to Kyungie,) his heart and mind is stressed and he feels that anything that touched/ wants to touch him, is a threat. If you know what I mean.

Well, all due to the stress... Hmph. I hate those fans. But if Kyungie is REEEEEEALLY sad, or depressed, it is somehow recommended for him to go see a psychiatrist. D': GET WELL SOON!x3 no stress!!! EXO hwaiting!

I don't know if I'd say he shies away from the touch, it doesn't look like that to me, but yeah, he does look sad. probably all the crazy fans getting to him. I know he is particularly affected by them.