The description Connie uses for music, “Bathed in a glow of slow-pulsed joy that seemed to rise mysteriously out of the music itself.”, shows how she is affected by it. Arnold uses music to try and make Connie feel safe and stimulated by him. He uses it to try and get her to come outside with him, continuing his stalkerish nature. Arnold uses music to communicate with Connie, because he knew what her favorite music and artist were. He knew it made her feel relaxed and by being relaxed he hoped it would make Connie feel more comfortable with him.
Even though Connie is insecure and a little flattered by Arnold’s attention, she doesn't feel comfortable with him, until he spoke of Bobby King, her favorite singer. Then Connie shows a slight interest. “He’s kind of great.”, Connie said reluctantly. This is the only time Connie responded with a little interest.
When Connie saw Arnold sitting in a car listening to music, she recognized the music that was playing and his black hair and odd boyish figure left a imprint in her head. Arnold’s comment, “Gonna get you baby.” foreshadows the dreadful ending of the story Arnold fulfills what he says to her. Connie thought the comment was quote was playful, but it is a foreshadowing a very real threat.
Connie’s insecurities foreshadowed her ability to get manipulated by Arnold