Robert couldn't care less aif she wore boxers or not, to be honest. He liked her, not the way she dressed or what underwear she wore. He would probably rip it as soon as they got in bed anyway. Robert wasn't going to give up and let her push him away, oh no. He'd get to know her and tore down any wall she built around her until she stopped being in denial.
"Exactly. I do not see how watching someone's insides outside or self torture is going to make me be scared of hearing Smee breathing and thinking is a killer under my bed." Hey, he got scared too. It was normal. He gave her a light shrug and smiled at her. "Don't mention it." He would do it again the following night, and the following, and so on, if that got him to know her a little better each time.