After her 15-year relationship ended, Marta Soul decided to explore what makes new partnerships so exciting.

From adolescence on, young women are punished for being "too" sexual.

This is a modern dating experiment. One girl. Five dating sites. Hundreds of chats. Thirty days. Thirty dates. Eighteen guys. (?) boyfriend. To start at the beginning, click here -- or jump right in at date twenty-one below.

My kiss with Amanda would weigh on me for 21 years, well after I had gotten into the right body.