The reasons of the separation remain unknown…What went wrong?

This news caught us off guard. Jessica Simpson’s sister Ashlee and her husband Pete Wentz have decided to separate.
The couple, who has been married for three years, and dating for another two, has released the following statement: "After careful consideration, we have made the difficult decision to file for divorce. We remain friends and deeply committed and loving parents to our son Bronx, whose happiness and well-being remains our number one priority. We ask that everyone honor our privacy as we navigate this next phase of our lives."
According to close sources, Pete likes to party too much and Ashlee had become more a homebody, especially after the birth of their son Bronx, two years ago. This could’ve been one of the reasons behind this surprising separation. Everybody agrees that there’s no third party involved.