You do know that they will leave if you treat them badly? And not following their personal quest does have consequences? I won't spoiler the hows, but you can really piss people off in EA so they leave.

I love it, I'm trying to romance Gale without feeding him in my current playthrough, but I like playing evil so it's hard (it's awful, I have to do good deeds to please Gale to compensate for - basicly - killing him).