Nick Lachey + Jessica Simpson

Nick has lately been reported to be spending his nights on a couch at the L.A. home of his friend Matt Leinart, 22, quarterback of USC's football team. Though Leinart has publicly denied it, an eyewitness tells Star: "Nick's been sleeping on Matt's couch for about a week now. I've been to Matt's house, and I saw Nick there!"

While this may or may not be true, Joe Simpson, Jessica's father/ manager, isn't about to let Jessica's personal life get in the way of her career, another source says.

"Joe controls everything in that marriage, from where they perform together, to whether they appear publicly, or not."

"Nick and Jessica are much more viable as a couple than they are as two individuals," a friend of the two tells Star.