Not much room for nuances based on changing relationships with a lot of them, if there's a long quest line it will change as you go along but when it's over it's like they go back to being aloof and completely neutral towards you somehow.
Yeah, that's probably my single biggest complaint about this game. I've probably been spoiled by Fable 2 and 3 because the NPCs in that game gossip and they don't miss a thing. I killed some non-hostiles in a friends game to augment a weapon (I can explain if anyone's interested.

) and when I came back into mine people still received me favorably, but as the children walked away some of them would mutter, "I know what you did to those people.".

All-in-all it's far from a game-breaker, but it would be much cooler if the comments evolved.

mlnb ,?nb v,l r09 n-. (That was Ulfric's youngest fangirl who wanted to add something. I'm not sure what.)
OK, that's pretty cute, you Dork.

She even hit the umlaut o - impressive.

If she ever comes home with a bearded warlord with a fondness for attacking things with his axe, I might get a little worried, actually.
Well, times change - that may come back around.

Speaking of affection among brothers in arms, my biggest pet peeve about Ulfric fandom is the penchant to titter about him and Ralof being secretly in love or something. Way to miss the best thing about male bonding. /soapbox
Yeah, I've seen some of the 'art'.

Imperial haters just jealous because Ralof is prettier than Rikke.

My own Stormcloak being a mage, I figure their relationship would be very rocky. [emphasis added]
Yes, especially since his own Court Mage was embroiled in a serial killing rampage.
