Although Cameron Diaz and Justin Timberlake never purchased a home together during their relationship, she did move all her stuff into his pad.  Before making her way back to her old house, Cameron is going to go back home for a while. Her parents live near LA, so she is going to get her head back on straight with the help of her mother. I can understand this. I don't know if it's true since it's coming from The Sun. But nevertheless, I can understand wanting to just veg out and have mom take care of you for a while.

"While Cameron looks for her own place, she wants to go home. Her parents also live near Los Angeles, in Long Beach. That's where she is going to move her stuff while she figures out what to do next." (source)