Despite her public claims that she and BFF Samantha Ronson are just really great friends, Lindsay Lohan sure is acting like her girlfriend. Or maybe even her wife. Yesterday we told you how Lindsay gave up pretending to be sober while partying at the Hawaiian Tropic Zone on Saturday night. According to the New York Post, Lindsay – being Lindsay – made sure to add a hell of a lot more drama to the night.

Lindsay Lohan gets feisty when it comes to gal pal Sam Ronson. The two spent the weekend partying at the Beatrice Inn on Friday and Hawaiian Tropic Zone on Saturday, where Ronson was spinning, but Lohan didn’t like all the attention Ronson was getting. “Ashley Olsen said hello to Sam at the Beatrice, and Lindsay screamed at her, ‘Get your 15-year-old ‘Full House’ a - - away from my girlfriend,’ ” said our spy. Saturday, Lohan said Ronson “was ignoring her” and became upset. “Samantha was really focused on her work and didn’t leave the booth for anything,” said our spy. Lindsay is so into her pal, she’s even created a Facebook profile under “Lindsay Ronson.”

[From the New York Post]

Ashley Olsen doesn’t exactly seem like she’d pose a threat to whatever relationship Lohan and Ronson have going on. And by most accounts she’s a well-behaved woman who seems to have her act together and runs a successful business. I doubt she’s used to being spoken to that way. It just shows how classless Lindsay Lohan is… in case that wasn’t already clear.

Both the New York Post, Gawker, and Radar all have stories on Lindsay’s Facebook page under “Lindsay Ronson.” That’s quite the commitment to a friendship right there – e-changing your last name. All three seem to think the profile is real, due to the legit famous friends she has.

Our favorite cocaine-dappled redhead, actress Lindsay Lohan, has a Facebook profile! But it’s undercover… She goes by the name “Lindsay Ronson,” using the last name of her friend (girlfriend perhaps??), DJ Samantha Ronson. She’s friends with Marc Jacobs, his ex-fiancé (and former hooker) Jason Preston, The Hills’ Lauren Conrad, model Jessica Stam, random internet socialite Cory Kennedy, and a whole host of other notable idiots. It’s funny to see that all these loathsome people are connected, though I guess it makes some perfect cosmic sense in a way. Though maybe they don’t all get along. She’s friends with a “Hillary Duff” (a notorious enemy) and, judging by her “Wall,” she and model Lauren Hastings seem to be in some sort of fight. Also, as you can see from her “Status,” she’s totes serious about her new sober living (”It was 430 am!!!” she offers as cryptic explanation for something), even though she’s been seen hard partying all over the place.

[From Gawker]

The Lindsay “Ronson” profile is back to private on Facebook… I’m guessing she got a lot of attention for it. There’s some screen captures below. I think it looks pretty legit. All I can say is, that Lindsay Lohan is one crazy girlfriend. Can you imagine what would happen if you were dating a guy, and made his last name yours on your Facebook page? There would be major hell to pay.

Here are the screen caps of Lindsay’s Facebook page. Header of Lindsay and Samantha are shown hanging out outside the DCMA store on April 11th. Images thanks to WENN.