Gwyneth Paltrow - who has a seven-year-old daughter, Apple, and a five-year-old son, Moses, with her spouse Chris Martin - thinks their ups-and-downs have only made their union stronger.
The 39-year-old actress said: "My parents were married for 30-something years, and my dad said [it was] because they never wanted to get divorced at the same time.
"I think you do fall in and out of love and you just keep going, and every time you go through a really difficult phase, you rediscover something new and it just gets better. We've been married for more than eight years now, and we're still into it."
Gwyneth also admitted she believes one of the reasons why her marriage has lasted is because she is willing to "compromise" in order to be there for Coldplay star Chris.
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Explaining that an unnamed friend recently came to her for advice, she added: "She is an actress and in a new relationship with someone else with a big career, and I said this may not be feminist, but you have to compromise. It's been all about you, and you're a big deal. And if you want what you're saying you want - a family - you have to be a wife, and that is part of the equation. Gloria Steinem may string me up by my toes, but all I can do is my best, and I can do only what works for me and my family."