SOUNDS like the honeymoon period is over for party animals-turned-parents Ashlee Simpson and Pete Wentz. According to reports, the couple is having a hard time adjusting to their new domestic lifestyle, and it's taking a toll on their marriage. An insider told 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." Like any good rep, Simpson's publicist denied the reports and said, "This is not true. Everything is fine in their world." The couple had a shotgun wedding in May '08. Lets hope they at least make it to their one-year anniversary, for the sake of their son Bronx Mowgli, who was born in November '08. - HS