What Sent Kelly Osbourne Back to Rehab

01/29/2009 at 06:30 AM EST

What Sent Kelly Osbourne Back to Rehab
Kelly Osbourne
Frank Micelotta/Getty
It's been a rough start to 2009 for Kelly Osbourne. After being arrested for allegedly slapping a journalist earlier this month, Sharon and Ozzy's daughter checked herself into a Los Angeles rehab facility for a 30-day stay.

"Kelly's always struggled with addiction," a source tells PEOPLE about Osbourne, 24, who's previously been to rehab for painkiller addiction in 2004 and 2005.

The source goes on to say that Osbourne, who divides her time between London and L.A., is greatly influenced by where she's living – and that her lifestyle in London "is very bad for her."

"It's a very party atmosphere there," says the source. "[Kelly] just tends to get back into that rut when she's there since her friends are there, and she's just more comfortable there. The old party habits come back."

When Osbourne checked into treatment, her rep told PEOPLE that former reality star wanted "to address some personal issues."

Though he couldn't be reached for comment, Osbourne's boyfriend, London-based model Luke Worrell, seems to be a positive influence on Osbourne. "She's never been happier," says the source. "She's really found love with Luke."

For more on what triggered Kelly Osbourne's latest stint in rehab, pick up the new issue of PEOPLE, on newsstands Friday

Reporting by DAVID CAPLAN

2002: Kelly remakes a Madonna classic
Read about more stars who sought help in rehab

Your Reaction

Follow Us

On Newsstands Now

Robin Roberts: How Loved Saved Me
  • Robin Roberts: How Loved Saved Me
  • Emma and Andrew: All About Hollywood's Cutest Couple
  • Prince George! More Yummy Photos

Pick up your copy on newsstands

Click here for instant access to the Digital Magazine


From Our Partners

Watch It

Editors' Picks

Latest Photos

From Our Partners

Sign up for our daily newsletter and other special offers.
    Choose your newsletters
Thank you for signing up! Your request may take up to one week to be processed.
    see all newsletters