The Rosie Project by Graeme Simsion

Don Tillman is a genetics professor in Melbourne who has Asperger's Syndrome.  He decides to embark on what he calls the Wife Project, a questionnaire to give women that will help him find a mate.  Then he meets a woman named Rosie, who's totally unsuitable according to the survey. However, she enlists Don to help her collect the DNA from men who possibly could be her father--and he finds that he enjoys her company. Being with Rosie allows Don to break rules, deviate from his very structured schedule, and have fun in ways he never imagined.  Can Don and Rosie overcome the complications in their relationship to find love?  The Rosie Project will be published next month.