Lindsay Lohan isn't engaged

Lindsay Lohan's rep has denied reports that the 'Mean Girls' actress is engaged to new boyfriend, Riley Giles.

and the "new" ring that Lindsay has been sporting lately is actually a gift from her father, Michael, and another ring she has been wearing is a Cartier creation that she has had for some time.

Lindsay has reportedly been dating Riley when they both met in the Cirque Lodge rehab unit in Utah.

Meanwhile, Riley Giles' ex girlfriend, Bree Tierney who has claimed Lindsay Lohan ruined her life after snagging her boyfriend, she said: “Lindsay Lohan stole my fiance and wrecked my life. I loved Riley and Lindsay stole him from me.

“I’ve stuck by Riley through the good and the bad. Even after a car accident in Las Vegas, when Riley was arrested and I was left at the scene. That was his third or fourth DUI. We knew then he had to get help.

“So he went into rehab, and I waited for him. We lived together for three years and planned on being together.

“But then he confirmed that he had sex with Lindsay in one of the stairwells at Cirque - that was it, we were done.”