Pete Wentz and Ashlee Simpson Baby Issue

Ashlee Simpson and Pete Wentz share an oddly named baby, Bronx Mowgli, and seemingly one of the happier unions in the young celebrity universe.

But according to an item in Page Six, even these two have their battles.

Ashlee is reportedly irritated that she is left home watching the baby while Pete, the breakout star of the band Fall Out Boy, gets to go out and play.

"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," a source says.