AnnaLynne McCord and Dominic Purcell have reportedly ended their relationship. Us Weekly magazine reports McCord decided to pull the plug on the 15 month romance after the engagements of her two sisters made her aware of the “imbalance” in her “romantic dynamic” with the Prison Break actor.

"Though AnnaLynne's not in a rush to get married, her sisters getting engaged must have made her evaluate her own relationship to some degree," an insider tells the magazine.

McCord, 25, and Purcell, 42, met last year on the set of the film Officer Down. McCord previously dated Twilight star Kellan Lutz and Purcell was previously married to Rebecca Williamson. Neither McCord nor Purcell has commented.

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