Even before its encounter with Rose, it seems to be emotionally savvy; it understands exactly how to needle the Doctor, and later how to manipulate Rose into touching it. Maybe half a century in captivity on Earth has given it some sort of insight into human behaviour, even if it's been the brutal end of human behaviour.

It's a bit hard to suss out Daleks sometimes, because, even though they're quite logical, they have been capable of being quite manipulative, at least as far as duping people if it was part of their schemes.

But this one does certainly seem to have particular insight into the Doctor (not to mention that line "What good are emotions if you cannot save the woman you love?")

The thing with Rose, though... I'm not sure that that was mere manipulation. One could interpret it either way, I suppose. If one wishes to believe it redeemed (or have now a greater potential for redemption, at least) then one is inclined to consider it to be sincere.

On the other flipper, if Daleks, all Daleks, are always unredeemably evil, then of course it was just being manipulative.

I'm not sure that the van Statten Dalek wouldn't fear the Doctor, especially when he's boasted to it that he destroyed the entire Dalek race

True. That is a point.