Share this Story

Did Ashlee Simpson's partying cause split?

A celebrity gossip junky, Caroline Goddard has been writing entertainment news for longer than the world has known Kim Kardashian's name. Follow her on Twitter at @GoddardCaroline.

Pete Wentz can't trust Ashlee Simpson

The breakup of Pete Wentz and Ashlee Simpson has been a long time coming, says a pal -- and was caused by a vicious cycle of absenteeism and partying.

Pete Wentz can't trust Ashlee Simpson

A source close to Ashlee Simpson and Pete Wentz told Us Weekly that the pair "have been talking about splitting up forever."

The insider says Pete was barely ever home to spend time with Ashlee and the couple's now two-year-old son Bronx. As the marriage started to fizzle, Ashlee started to take out her frustrations by partying.

"Ashlee has been out late partying for the past few months," said a source, adding that the young mom hangs out with a crew of pro skateboarders and often wouldn't get home until sunrise.

"She would lose track of time."

Pete was not amused by these shenanigans. The source says the rocker "started getting burnt out" by Ashlee's erratic behavior and while he was on the road he "would constantly check in on Ashlee, and he'd have his friends call the house and her cell to make sure she said she was where she said she was going to be."

"He felt like he couldn't trust her."

Wentz, normally prolific on Twitter, hasn't updated since right before the couple announced their split.

read on for more ashlee simpson

Ashlee Simpson and Pete Wentz: Behind the split
Ashlee Simpson and Pete Wentz's post-split Valentine's date
Ashlee Simpson files for divorce

New in Entertainment

And you'll see personalized content just for you whenever you click the My Feed .

SheKnows is making some changes!

b h e a r d !

Welcome to the new SheKnows Community,

where you can share your stories, ideas

and CONNECT with millions of women.

Get Started