"I can go back first?" She's keenly grateful. She stands up a little straighter. "Could I- could I brush my hair?"

She's aware it's a small, petty thing to ask for, but she figures it's a win-win. If he says yes, she gets to comb her hair; if he says no, he gets to feel good about himself for denying her something she can easily go without. It's like a controlled burn.