“You’re always finding ways to be around each other. You claim to hate one another, you piss each other off, and everyone sees it and knows about it, but it’s like you two are addicted to each other. You have to be around him, even if you’re just fucking with him, or you get all moody and twatty.”
Nate's speech recontextualizes what we know about the relationship between Devon and Maddox (though obviously it was obvious in other chapters as well). But in the past, we've heard other people saying that they were rivals who were too focused on one another - but going back after this speech, it actually sounds like most people realize that the two need one another. Nobody (Maddox's mom, Nate and Xavi, even Andrea and possibly even Julie) seems to be surprised that Maddox is helping Devon, and Nate is trying to make Devon realize this.
