Despite changing the subject off of us and onto neutral topics, she still hung out with me for the rest of the afternoon. I should have asked her how she felt about me but didn't. After we made arrangements to meet in the evening and go to Old Recife, I felt that perhaps things were not so bad.
We met near her house and made our way to Old Recife. As we walked around looking for a restaurant with live music, she made it easy for me to take her hand in mine. During the evening she made other non-verbal indications that I ranked high on her "ideal profile" and that she was firmly on board for pursuing our relationship more seriously.
On Saturday she made it official by asking me if I minded that when talking to her friends she referred to me as her namorado, and confirmed that I would be referring to her as my namorada.
So far, all I can say that all's well that ends well. We'll see how things progress.