That makes Peter look over at her, watching her for a moment. "I guess that's common for you at home."

She wouldn't mention it otherwise, but it's more of a prod for her to tell him more if she's so inclined.

Peter goes back and forth in his mindset about whether going home is a good thing or a bad thing. On the one hand, he needs to check on his aunt. On the other, it just hurts to see Gwen every day and know that he shouldn't have a relationship with her. Of course, Gwen is here as well, but it's easier to avoid her here.