I guess I'm a bit twisted then. When my sister copied me I encouraged it. The closer we came to identical, the more I liked it. She is still my best friend.
My sis is the same also. We behave in the same way lol and react the same too. Our views are almost similar about everything. So even if the world is against us we are with each other.
Well, as long as she doesn't purposely hurt herself when you do. To me it would be uncomfortable (probably the same for Nick), but if you're fine with it then it isn't bad.
Though I do partly agree that Nick is hateful, isn't it the parents who brought out that side of him? I mean it's no excuse for him to treat Louis like that or Theo, but I don't think Nick deserves the amount of hate he's getting.
Also I agree Theo is cute and I do prefer him over Nick; but if I was Nick, and Theo kept copying me with every dam thing, then I'd probably get freaked out and want him to go away, you know?