Amanda Seyfriend hates being separated from her dog, Finn.

The 29-year-old star - who is dating 'Dodgeball' actor Justin Long - has admitted she is extremely dependent on the Australian Shepherd and is worried about having to live life without him in the future.

The 'Les Miserables' actress said: ''I just don't want to leave him anymore. Maybe it's because I'm subconsciously aware of his mortality. I try not to think about it, but somewhere inside me, I'm like, 'He's going to die way sooner than all the rest of the people I know!'''

The blonde beauty is also extremely attached to Justin, who she started dating almost two years ago.

She said: ''I really do have my own identity, both inside and outside the relationship, if that makes any sense. It just feels right. It's also really good to feel OK being alone.''

Amanda added the couple are both extremely close to their families.

She told the June edition of Vogue magazine: ''Justin likes being at home with his parents. And I like that about him. I was in Allentown [Pennysylvania, her hometown] last weekend and didn't want to come back.''

But the actress admits she hopes to raise her future children in Stone Ridge, New York, where she bought a farmhouse last October.

Asked where she sees herself living in the future, she said: ''Here. Because I want to have kids. And I want them to go to local schools, and there are some really good schools around here. I would like my life to be the same as it is now, but with a little less stress and a little less work.''