It's time for another round of everyone's favorite game-what's Lindsay Lohan doing this week?I'll tell you what she's apparently not doing: eating.

Lohan was spotted out and about in Los Angeles this week with her sister Ali, and her wraithlike appearance-her ribs could be seen quite clearly when she turned to the side in an open-side sundress-has both her fans and her friends worried.

"She's a self-destructive person," a source close to Lohan told People magazine. "It's all part of her cry for attention. She wants Sam [Ronson, Lohan's ex-girlfriend] to see how bad she's hurting and she wants Hollywood to see her as a 'tortured artist' who is wasting away. . This is a symptom of something much bigger-a desperate need to be noticed."

If she's trying to get noticed, it's working. While most celebrities tend to stay mum about recent breakups, Lohan has spoken about hers to just about any news source that will listen. On the April 23 Ellen DeGeneres show, Lindsay told Ellen that the breakup "came out of nowhere."

Split or not, Lohan and Ronson still spend time together. Lindsay visited Ronson at her Los Angeles home on Thursday for about six hours. "Lindsay had her assistant drive her to Sam's house around 1 p.m.," a source told People. According to the source, when Lohan left six hours later, she looked "very happy."

Maybe she looked happy, and I'm all for exes staying friends, but her extremely thin appearance doesn't seem too conducive to being adjusted to the single life. A friend of Ronson's agreed. "When Lindsay is off-balance, she'll pull out every issue you can imagine," she told People. "She doesn't eat. She stays up all night and sleeps all day, so she misses meals. When she is doing good, when she is happy, her appetite is healthy and her weight is healthy."

While Lindsay's rep tells People that "[Lohan's] weight is fine" and that she "has been in a very good place," her appearance and recent actions-an alarming return to her partying ways-say otherwise.