Answer the question about text:

The music was n't always swing , so Paul and I started " free - stylin ' " and had a blast . I then got in trouble with Don because I had apparently been " holding out on him " how well I could improvise on the dance floor . Now I ca n't get away with being reserved when we dance , I am so screwed . After the dance it started to rain , plus Don wo n't let me walk home by myself .

What may be the reason why he does n't let her walk home alone ?
For safety reasons .