Rosberg made a mistake and lucked a pole. He will feel a bit sheepish around Lewis because he lucked it, not because he did it deliberately.
Yep, I like watching Lewis in this situations. He's very easy to rattle, he becomes the moody child again. Couldn't just pat Rosberg on the shoulder, instead he won't even look at him. He would have gained more by laughing at Rosberg who clearly was awkward as hell taking a pole like that.
Lewis doesn't need to get too upset he has the beating of Rosberg comfortably over the season.