Nan Xueyue's devastation expressed via silence and smile

I am blown away by the actor Wang Duo! To me, the way his silent demeanor and nod is conveying his internal turmoil (start of the clip) to his sudden smile (near the end) is simply marvelous. I say this is peak acting where he has used his expressions to beautifully convey the contradiction which lies within him.

Based on solely this clip, I'd like to ask the following question to figure out whether I'm truly biased and blind (which might be the case) or his acting really conveys his emotions.

What emotion do you feel when you see this clip?

Drama: The Blossoming Love

PS: I didn't mark it as spoiler as I don't think it gives away any important information about the plot.

PSS: I haven't slept the whole night just to binge watch this brooding bored and beautiful man so please any words of praise for this man will make me feel less guilty for making terrible life choices. Kindly do not bash the actor if you don't feel the same way. You are free to lecture me instead.