Daniel's headline reads that he's just as much of an asshole as Charlie. He instantly regrets asking Natasha to wait outside. He wishes he could go back in time and not say it, and reasons that if they're going to be together, he's going to have to deal with Dae Hyun's racism. Daniel wishes he could just fall in love without having to deal with all the hard stuff.
Here, the novel presents standing up to racism as both the logical right thing to do, as well as the way for Daniel to show his emotional connection with Natasha—illustrating again that rationality and emotion don't have to be at odds.