I knew it with the first hint but haven't had the time to look for another quote before now. This is from "The Long Road Home" by Erin Klingler. (Edited because I'm an idiot and stuck the title of another of Erin's stories in the first time. I really do know the difference, but my brain is tired.)

Back in a few minutes with another quote!

OK, I don't think this one has been used yet:

Quote
She's not always so peaceful. She can be pretty feisty at times - it's a good thing I'm invulnerable, otherwise she might well have drawn blood by now. I guess it's her independent spirit that makes us clash, and if I'm being honest, I can be pretty stubborn, too. The result is that we don't always agree: I want to do things my way and she wants to do them her way.

Of course, she can also be aloof and haughty when she thinks I've done wrong. I get ignored on a regular basis.
Caroline