Lindsay Lohan and Samantha Ronson’s romance is on the rocks just weeks after going public with their romance.

The pair are said to be drifting apart after a string of increasingly volatile arguments.

The reasons for all the bickering?

SamAn wants Lezsay to step out of the limelight and she is also said to feel ’smothered’ by all the attention Lohan pays her and is anxious to step away from the media spotlight.

A source said: ‘Sam needs her space away from Lindsay and really needs to take a long look at what the future of this relationship can be. Sam’s friends have been saying for a while that Lindsay still likes men as well as women. And for Lindsay’s part, she’s still caught up in her partying ways. Samantha doesn’t need that in her life, not now, not ever. If these two are going to be together for the long term, Lindsay is the one who’s going to have to change, calm down, and get real. Sam’s made that very clear to her. Clearly, they were spending a little too much time together, and Samantha was the one who said Lindsay was getting in the way, and even acting obsessive at times. Samantha DJ’ed three big parties around the Emmy weekend in Los Angeles, and Lindsay was practically on top of her for every minute of those gigs. Lindsay was behaving in a very smothering way. For a man or a woman, it can be hard when your girlfriend insists on going to work with you every day. The problem here is that Samantha is intent on being taken seriously as a DJ, and the Lindsay sideshow was starting to overwhelm that.’

And their holiday together in Mexico two weeks ago was all about fixing their relationship.

A source said: ‘The vacation was all about fixing their relationship, because things had gotten dicey in late August and early September as Lindsay and Sam were just getting so much attention - so much that they needed to get out of the country for a while. But things didn’t go well in Mexico. Despite the photos of them playing on the beach, Sam said things were very tense between them when they got back. She’s known for being shy, but what she’s less known for is being a very serious and thoughtful person, and there have always been these second thoughts about how she comes across being in this high profile celebrity romance. It’s never been something Sam’s been willing to embrace the way Lindsay does. Going to Mexico kind of confirmed a lot of that stuff for Sam.’

Basically, Samantha knew what she was getting into when she started dating Lindsay. She’s now well known because of Lindsay and all of a sudden she’s expecting Lindsay to change to meet her expectations is selfish and demeaning.