I was shocked to read Aristotle's description of what friendliness is and why we have friends (Book 2, Chapter 4). Well, not shocked, but mildly surprised at the simplicity of his definition.
Aristotle essentially says "in friendship, the more we get together the happier we'll be. Your friends are my friends and my friends are your friends."
It's a big priority in my life to have a lot of friends for the purposes of personal support, gaining the ability to support others, and increasing my ability to relate to other people. I view my rhetorical inclinations as instrumental in this process. That's why it's so funny that Aristotle posits that friendship is comprised of having people who hold your views and have the same enemies as you. These are essential points, and yet it certainly doesn't hold true for my friends. Furthermore, it neglects the place of rhetoric in making friends in the first place! That's rhetoric as negotiation, though, and it might be a deviation from how Aristotle sees rhetoric as functioning.