Parenthood is taking its toll on Pete Wentz and Ashlee Simpson-Wentz.

Blabbermouths close to the couple claim the once active pair is having trouble adapting to their more subdued lifestyle. Pete and Ashlee welcomed son Bronx last November, but domesticity and diapers don’t agree with the 24-year-old bride.

A tipster tells Page Six, “Ashlee and Pete are on the rocks. He is going out all the time and she’s stuck at home. It’s just not working.”