Lindsay Lohan has reportedly launched a furious internet rant at her girlfriend Samantha Ronson - with the star appearing to accuse the DJ of cheating on her.

Posts on the star's private Twitter.com page have been obtained by celebrity blogger Perez Hilton, and the notes appear to show Lohan fuming at her partner online. The blogs, said to be from Lohan, are directed at Ronson's profile on the social networking site.

They read, "I was right all along. Cheat. Being cheated on does wonders to you. I'm doing this publicly because u&ur friends call People mag.. So you win, you broke my heart. Now go away. I loved you."

The news comes amid reports that Ronson had the locks on her Los Angeles home changed on Saturday, according to TMZ.com. The couple has been dogged by break-up rumors throughout their turbulent and highly publicized romance.

Last week Lohan was once again forced to deny reports of split, calling their relationship "fine."

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(This news article provided by World Entertainment News Network)