Sometimes you think the other person is joking, but actually, it's not a joke. You think the other person doesn't care, but actually, they understand what you're saying. People are complex. To quote a saying, you can understand certain thoughts of a person at all times, or you can understand all thoughts of a person at certain times, but you cannot understand all the thoughts of a person at all times.
Adrian can't either, but he doesn't need to fully understand. For him, being able to understand certain thoughts at all times and all thoughts at certain times is enough. Therefore, although Tyler's reaction was somewhat unexpected—this rebellious little girl actually said something was too cool—he didn't take it too seriously.
