“Neither one of you is ever going to be happy. All you care about is fucking with each other and outdoing each other. It’s getting pathetic.”
She is echoing his brother (in a much more cruel way, while also giving insight into Devon) - the person Maddox cares most about is Devon (and vice versa) in that he wants to one-up him (though we know from earlier this chapter that Maddox also cares about Devon even if he doesn't recognize it or want to admit it. We've now had two separate characters tell Maddox this; it would not be surprising if more people were also aware of this.
