Amanda Seyfried is unsure of her future with boyfriend Dominic Cooper because she can't say for certain whether he is "The One".
The actress has been dating the British star since they met on the set of hit 2008 movie-musical Mamma Mia!.
The 24 year old admits she has no idea whether they have a long future together, but she's happy just to enjoy the romance while it lasts.
She tells Teen Vogue magazine, "A lot of people ask me, 'Is Dominic The One?' I don't know, and I'm fine with that.
"Too much planning can lead to heartbreak. Love is great and possible always, but it's very rare to have the feeling that 'I want to be with this person forever.'"
Before dating Cooper the actress had had a two year relationship with musician Jesse Marchant before meeting Cooper in Mamma Mia.
The actress is back on the big screen this week with her latest movie Letter To Juliet, which sees her star alongside Vanessa Redgrave.
It's the third movie of te year for the actress after Chloe and topping the American box office with Dear John.
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