describe the feelings that the poet creates in the second stanza of meeting at night of robert browning

In the second stanza of "Meeting at Night," the poet, Robert Browning creates a sense of anticipation, excitement, and a bit of nervousness. The narrator experiences each of these feelings in six very short lines, as he approaches the home of the woman he loves. I've always believed the object of his affections to be a young girl. He doesn't go to the door and announce himself, but rather taps on the window. Thus, I believe the fear he mentions does not relate to the meeting..... it relates to the fear of getting caught. This is of course my opinion, what do you think?