Lindsay Lohan was allegedly beaten up by on/off girlfriend Samantha Ronson.
The 'Mean Girls' actress - who has a turbulent relationship with the DJ - reportedly told a pal how the romance had, at times, been very violent, with Lindsay having the scars to prove it.
The friend said: "One time I saw Lindsay and she had a large welt on her head. She told me that Sam beat the s**t out of her.
"She also said that Sam even punched and choked her one time."
Although they have officially broken up, the two women still have regular contact with each other, which makes things hard on Lindsay.
Making things worse is the fact that both women live in the same building.
Following the break-in at her Hollywood Hills home, Lindsay moved into an apartment in West Hollywood. Shortly after, Samantha moved in. The source tells RadarOnline.com that Ronson regularly comes over using a key she has to Lindsay’s apartment.
The friend added to Radar Online: "It's so twisted. They're not together, but they are. I never thought I'd ever say this, but I really do feel sorry for Lindsay. She is just lost. She's alone. She has no friends to turn to."