not gonna really explain a lot here so...

KBS Backstage 

 At 1:48-50 during Suho's talking, Luhan is seen visibly staring to the far left smiling like an idiot to who knows who. Keep in mind SNSD's position in the video in that they were in the far... left? somewhat isolated from the rest of the artists due to their queenly sunbae status. 

Afterwards at 2:01-2 he started being shy & awkward again (control luhan,control. If you can't control your derp faces and your jaw atleast try and hide your emotions better) then keeps on staring to the way left/right again for most of the video. Did you see your gf Seo? Is that why?

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So...2 members of snsd are  dating now, with Hyo being unconfirmed but we all know she's seeing somebody. Yoona with Seungi & Sooyoung  with Kyung Ho and which I am so happy for them. And I notice that the pattern seems to be focusing on the maknaes, does that mean Seo's next? If so who do you guys think she's dating, aside from Luhan..?