Jessica Biel gives an insight into her happiness.

Her 10-year relationship with Justin Timberlake was only so harmonious because they were both more focused on careers.

The 35-year-old has two-year-old son Silas with the singer and the couple has a happy relationship. The reason for this is that both are very committed to their careers and this attitude creates a deep bond. The actress told the US version of Marie Claire magazine: "We believe in the same values: loyalty, honesty. We like to have fun. We have a lot of common interests. We are both very career-oriented. You have to sometimes just being a little selfish. I also understand that with my colleagues that you are focused and driven, and if you find someone who shares the same values, it’s like this: Jackpot! "

After the birth of her little boy, the actress became somewhat less "selfish". "You think you are selfless and then you realize that you are not. These little people are suddenly there and they demand so much. Your daily schedule is no longer yours and it is pretty clear that your life is now about this little one Guy turns. "