'Marley and Me' star Jennifer Aniston has said she thinks people seeking out the perfect relationship are fooling themselves.
Aniston said the most important factor in a relationship was communication. She told Cosmopolitan magazine about the "pressure" people felt under to have a relationship that would be everlasting.
Aniston said: "I don't think a perfect relationship exists. But I do think that many of us think it does and we're just fooling ourselves. Whoever said that everything has to be forever? That's unrealistic or hoping for too much. I don't think it's worth all that pressure."
Aniston said that every relationship was a "world unto itself". She continued: "The most important factor is communication.
"People often expect their partner to read their minds, and when that doesn't happen, they get pretty upset. Then the other person gets even more upset and, at the end of the day, it's all because they didn't talk it over at the beginning."
Despite her own love life being played out so publicly, sometimes in a "horrendous" way, Aniston said she refused to be dragged down by it.
The 40-year-old actress said: "I'm still baffled as to why people are so interested in my life. "It's so weird, even my dog Norman gets recognised - he's famous. But I'm cutting him off, I've told him no more Oprah appearances!
"It's been horrendous at times. I have had to simply move through it and try to think positively."
She said she felt as though everything was just beginning and continued: "I would say that this is the best moment of my life.
"I've never felt better - physically or professionally. I'm a very lucky woman, without a doubt."
She likened the cast of hit US sit-com Friends to a family, saying: "I love them and we're close, but we don't see each other all the time. "We have grand plans, like, 'We'll have dinner once a month'. And then life happens, times change. It leaves me feeling sort of melancholy.
"They will always be my family whether we are in the same room and talking regularly or not."
Aniston described Friends as a one-off and said the show probably contained some of her greatest work. Something like (Friends) will never happen again and you have to acknowledge that.
"It was probably some of the greatest stuff I'll get to do in my career, so anything that happens from this point is just a cherry on top of the cake. I've really had such a great time and the fact that I just get to keep working makes me feel really lucky."
