As legal proceedings played out this week in her trial on felony grand theft charges, the publicity machine surrounding Lindsay Lohan appears to have suddenly awakened–almost as though the actress is jealous of all the attention Charlie Sheen has been getting.

Among the latest tidbits: TMZ is reporting that Lohan is “steaming mad” after photos circulated that showed her ex-girlfriend kissing another woman; Lohan’s mom tells PopEater.com that Lindsay is dropping her last name and wants to be known simply as “Lindsay” from now on; and she’s apparently not off the hook just yet on that battery case that happened in rehab a few months back.

In the rehab incident, The Hollywood Gossip reports that authorities are getting serious again about investigating the case. The Riverside (Calif.) County District Attorney’s Office reportedly questioned witnesses this week in the Dec. 12 fracas involving Lohan and rehab staffer Dawn Holland, and officials have said the D.A. is still considering pursuing criminal assault charges against the actress.

Meanwhile, Dina Lohan, Lindsay’s mom, told PopEater, "Lindsay is dropping the Lohan and just going by Lindsay. Plus, me and [younger daughter] Ali will be officially changing our last names back to my maiden name, Sullivan." The story quotes a family friend saying family members don’t want to have anything to do anymore with Lindsay’s father, Michael Lohan.

TMZ reported that Lindsay was irate after photos surfaced that showed her ex-girlfriend Samantha Ronson kissing a “mystery woman” Thursday in Los Angeles. Lohan and Ronson aren’t officially dating, the story says, but Lohan was apparently under the impression that Ronson wasn’t seeing anyone else.

In what is still probably the most troubling current hassle for Lohan, the necklace incident, things are momentarily quiet after the actress made it official this week that she will contest the felony grand theft charge in court. Examiner.com reported that she rejected an offer from the Superior Court judge that would have ensured that Lohan would not have to serve more than 90 days in jail in the case.