Dear Sugar: Do I Follow My Head Or My Heart?

The Sugars get a letter from a young woman who has fallen head over heels in love. She and her boyfriend only met a month ago, but they are already in deep. Everything seems perfect, and yet the letter writer can't help but wonder if the traumas of her new love's past are hiding somewhere under the surface, threatening to resurface. The Sugars do something new — and get the letter writer on the phone to speak with her directly about her fears.